Litter-robot 4 weight sensor not working

The side of it, yes. Not anything that moves. It cannot be touching any walls. What is the timing light please? There is a weight attached to the back of the liner. It helps the liner invert when the globe is upside down, to release any stuck on clumps. The cat sensor is located at the bottom rear of the base.

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Resolve issues with inaccurate cat weight detection in your Litter-Robot 4 using our troubleshooting guide. Learn about weight sensors, proper placement, Bezel cleaning, …

Remove and empty the waste drawer and place back in the base unit. Remove both the bonnet and globe, place the bonnet only back on the base and press reset. With nothing touching the base aside from the control panel buttons, press and HOLD the EMPTY & RESET buttons for 5 to 6 seconds or till the red light flashes fast, then let go of the buttons.Toll Free: 877-250-7729 www.Litter-Robot.com Setting Up Your Litter-Robot Your Litter-Robot comes fully assembled and ready to use. Get started by following the steps below. Placement If possible, place the Litter-Robot in the same location as the old litter box (at least during transition).The LR4 no longer uses the sensors contained in the drawer that would get dirty and fault out all of the time (drawer full when it is completely empty). The LR4 now uses a beam in the top of globe bezel which checks the level through the opening each time the box empties. Now you get a real time waste level.Curious Cat. Photograph: Whisker. Whisker’s Litter-Robot 4 is the company’s fourth iteration of its famous box ( we also liked the 3 Connect ). This one comes with a much larger entry and ...Litter-Robot III Open Air: Activating the Cat Sensor. Watch on. Success: The light should switch to red, as if recognizing your cat's entry into the unit. Unsuccessful: If your unit is …

Please follow the steps below. Open your app. Go to “Remote” and click “Delete my Litter-Robot.”. Completely close the Litter-Robot app. Reset your Litter-Robot by unplugging it from the base while the unit is powered on. Wait 15 seconds, plug it back in, and allow it to cycle until the blue “Ready” status lights up.Litter-Robot 3 Connect. $549. Buy in monthly payments with Affirm on orders over $50. Learn more. Never scoop again with the highest-rated WiFi-enabled, automatic, self-cleaning litter box for cats. Since 2000, 1 million happy pet parents have upgraded to the Litter-Robot! 90-Day In-Home Trial. Free Shipping (ex. AK/HI/PR)Jan 6, 2023 · Material Composition. Leo’s Loo cat litter box is made of high-quality plastic that is sturdy and long-lasting. Which is perfect for smaller cats weighing 2 lbs to 4 lbs. The inside of the globe is made of silicone. The Litter Robot-3 is also made of heavy-duty plastic, making its body solid and robust. Litter-Robot 3: Reset Button. The Reset button will reset your Litter-Robot's Cat Sensor. You can think of the Cat Sensor as the scale and the Reset button as a way to zero the scale. IMPORTANT: Any time you do anything that affects the weight or placement of the unit, including adding or removing litter, emptying the Waste Drawer, or moving or ... Litter-Robot II Repair Guide - Chapter 4: Cat Sensor Micro Switch Litter-Robot II Repair Guide - Chapter 5: Sensor Harness This guide will help you with : Opening up the Litter-Robot II Testing the power supply Verifying the circuit board connections Verifying the safety line connections Verifying the motor connections Verifying the Hall effect ...Power off the unit, lift unit 1" off the ground so the load sensor is reset and correctly positioned. Power up and let clean cycle finish. Wait till kitty goes to verify the load sensor is working. BTW These units need low dust litter to work reliably

2 Jul 2023 ... I also love the smart scale built into the Litter-Robot 4, which automatically records your cat's weight each time they use it so that you can ...AudioVOX July 7, 2017, 8:46am 12. @Wahoo650 You can find parts for your Litter-Robot II on our website here. kristophersullivan November 27, 2017, 12:04am 13. Open up the motor. Be Careful it’s tricky. Grab some gear oil and a few drops of white lithium grease. Quiet and smooth operation again.1. Excess Weight (Slow Flash - 1x/sec) If there is excess weight inside the unit, this will cause the motor to slow down/seize and the unit will not complete a cycle in the allotted time frame (~2 minutes, 30 seconds). Please check your litter level to ensure that you are at or below the fill line. Can we ask what brand of cat litter you are using?GVWR stands for gross vehicle weight rating. Visit HowStuffWorks to findout more about GVWR (gross vehicle weight rating). Advertisement A vehicle's gross vehicle weight rating is an important number to know, whether you're driving a pickup...Yes. Litter-Robot 4 uses laser and weight sensor technology to detect when your cat enters and exits the globe, which triggers the countdown timer and cleaning cycle. The SmartScale™ will not recognize kittens that weigh less than 1.36 kg. Therefore, kittens that weigh less than 1.36 kg can use Litter-Robot 4, but not in automatic mode. After a cycling, the app read that the litter was “low”/ completely gone. I’ve tried the following to resolve it: cycling. turning it off and then on again. unpairing and repairing the robot. firmware update. emptying the robot of litter entirely, cycling, and then adding litter again. The litter level reader is still inaccurate.

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Intro Troubleshooting Common Litter-Robot 4 Errors & How To Fix Them The Bearded Tech Guy 8.77K subscribers Join Subscribe Share 64K views 11 months ago #Meow #Litter #LR4 In this video we'll...The weight sensor doesn’t seem to work properly so it’s not registering which cat is using it. Every time my one cat uses the box her weight is between 5.6-8.5 pounds. So the machines confused who’s using it. ... This was compared to the Litter Robot 4 I was testing (that also had leaking issues, and the app did reminder you that the tray was full …Yes. Litter-Robot 4 uses laser and weight sensor technology to detect when your cat enters and exits the globe, which triggers the countdown timer and cleaning cycle. The SmartScale™ will not recognize kittens that weigh less than 1.36 kg. Therefore, kittens that weigh less than 1.36 kg can use Litter-Robot 4, but not in automatic mode. With you are a pet owner whoever uses a Litters Robot to manage your cat's litter box, you know how convenient furthermore time-saving it can be. However, if aforementioned sensor in ... Discover instructions to reset the Litter-Robot Cat Sensor, which can solve many issues. The Reset button can so named because it resets an …The Petkit Pura X Litter Box is a self-cleaning litter box that is cube-shaped and takes up a little less space than the Litter Robot III. It comes with many features, including an app that provides real-time notifications regarding your cat’s weight, multiple sensors, as well as a rotating inner globe that cleans quietly and effectively.

The side of it, yes. Not anything that moves. It cannot be touching any walls. What is the timing light please? There is a weight attached to the back of the liner. It helps the liner invert when the globe is upside down, to release any stuck on clumps. The cat sensor is located at the bottom rear of the base.The weight sensor seems to consistently report accurate weights of the cats. I can pretty much guess which cat just went and I have two brothers that are within half a pound of each other. So yeah, way overkill on the safety features, but if the pinch sensor does fail, I’ll probably end up doing what I did with one of my LR3’s, just splice ...I would definitely recommend calling the Litter Robot support team - they were really helpful when I called with frequent cat sensor faults a few months after getting our litter robot 3 - they recommended filling it less than I have been - suggesting it may do better 1/2" or 1" BELOW the fill line - apparently with different weights of litters, they've found filling up to …Soldiers face danger every day -- detecting landmines, deactivating unexploded bombs and scoping out hostile buildings are tasks that don't always require a human presence. That's where military robots come in. Advertisement Everyone knows ...I just got a Litter Robot 4 on Saturday the 24th. We have 4 cats. One used it right away, the other three are getting used to it. It seems more than one of them are using it now. But the app shows 0 lbs and no cat weight events. I have hit the reset button, but still nothing. The box is on a hard tile floor, not carpet. Few steps: 1: Cut either the black or blue wire. 2: Get a 2k ohm resistor. (I didn't have any so I used a resistor and a potentiometer.) P.s. The litter robot sends 5v to the cat sensor and gets 0,9v back, therefore you need the 2k ohm resistor. 3: Make the pressure point where the cat sensor were placed, to a switch.Laser and weight sensor technology detects cats weighing 3+ lbs. The integrated SafeCat™ System continuously analyzes 4 zones to ensure kitty’s safety. ... Litter beads and crystals that are small enough to pass through the screen will also work. Litter-Robot is not compatible with litters that are strictly absorbent, non-clumping, loose ...Are you looking for a weight loss program that can help you achieve your body goals? Look no further than V Shred, a fitness and nutrition program that promises to help you lose weight and build muscle.Litter-Robot 4 does not require special litter. Litter-Robot works well with almost any clumping or scoopable litter. Litter beads and crystals that are small enough to pass through the screen will also work. Litter-Robot is not compatible with litters that are strictly absorbent, non-clumping, loose-clumping, newspaper-based, or wood-based ...

If a Curtain Sensor is activated during a cycle, the Globe will stop. After 15 seconds of no further activation, the Globe rotation will resume. Cat Sensor - Weight Scale . The Litter-Robot is equipped with Weight Sensors located in the base of the unit that are used to further detect and weigh the cat within the Globe while in the Home position.

Robots are made of three main components: the controller, mechanical parts and sensors. The type of materials that make up the different components will vary depending on the type of robot. These components can be metal or plastic, but usua...After several days support emailed me back with the additional step to try: loosening the bolt in the base that controls the response of the cat sensor “foot” in the back of the base. Press Cycle and Reset at the same time until red light flashes, the press Reset. All done with empty globe and drawer per instructions.Sep 8, 2016 · Each time the unit is powered on and at the end of each Clean cycle, the Cat Sensor measures the weight of the unit. The Cat Sensor then uses that weight as its new baseline. When the cat enters, the Cat Sensor detects increased weight, and knows not to perform a Clean cycle. W hen the cat exits, the Cat Sensor detects a decrease in weight (an ... Quick question. I got a litter robot 2 for about 2 years. It stop working today. The “empty” and “cycle” bottoms doesn’t work but only reset bottom works and “ready” is flashing blue. If I push the “reset” bottom, “cycling” is flashing yellow in 4 times per sec. The problem didn’t solve after I cleaned up pinch pins.Push down and back, as if you attempting to roll a ball away from you. The unit should switch to red when you do that. When you do it, listen for a faint click. That’s the sensor actuating. Gently rock it like that several times. Now wait for the unit to autocycle, (assuming this has made the light red). Cat detection. The Litter Robot 4’s sensors detect the weight change when your cat both stands on the step and gets completely into the machine, and runs a clean cycle after they leave. It also ...On the LR3 the cat sensor nut is located in the waste drawer compartment, fairly easy to get to, (see attached picture) use a small adjustable wrench or a 8 or 9 mm end wrench try turning it loose 1/2 turn initially and test for the sensitivity, loosen another 1/2 turn if no change. If there's no change in sensitivity after the full turn then ...Need technical support? Our Troubleshooting Wizard will solve most issues and is the fastest way to get help. Troubleshooting Wizard Didn't find what you're looking for? Phone and Chat support available Mon-Fri: 9AM-5PM EST or submit a ticket anytime. Chat with us1-877-250-7729Submit a ticket Facebook Twitter Instagram YouTube Pinterest

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1. When your cat exits Litter-Robot, a timer counts down, allowing the litter to clump before a clean cycle begins. 2. During the clean cycle, the globe slowly rotates. The patented sifting process separates the clumps from the clean litter. 3. The clumps are deposited into a sealed waste drawer below. 4. To further troubleshoot, I performed multiple clean cycles, multiple resets, pulled power cord, took it completely apart and vacuumed everything. Still, no matter what it won’t show a zero percent empty. One cat used the …Intro Troubleshooting Common Litter-Robot 4 Errors & How To Fix Them The Bearded Tech Guy 8.77K subscribers Join Subscribe Share 64K views 11 months ago #Meow #Litter #LR4 In this video we'll...In this video, our Domestic Robots Specialists Phil and Josué teach you how you can easily replace the cat sensor in your robotic litter Litter-Robot 3 Open ...If you're not familiar with the previous iterations of the Litter-Robot, it's a genius machine that makes sure cat parents never have to scoop the litter box again. A cat enters a globe filled with clumping litter. The globe senses your cat by weight, and thanks to Litter-Robot 4 improvements, by light sensor, too.Oct 28, 2019 · Litter robot not sensing cats. The unit is pretty sensitive and can pick-up weight from hands, arms, or other objects resting on the unit when “reset” is pressed. The unit should also be pulled away from a wall. Make sure you do not press on the Litter-Robot when you press the reset button. We need to troubleshoot your cat sensor system (CATS). Litter-Robot II Repair Guide - Chapter 4: Cat Sensor Micro Switch Litter-Robot II Repair Guide - Chapter 5: Sensor Harness This guide will help you with : Opening up the Litter-Robot II Testing the power supply Verifying the circuit board connections Verifying the safety line connections Verifying the motor connections Verifying the Hall effect ...Thank you!! I was thinking it had something to do with the weight sensor as well. It may be time for a replacement, I've had this thing for almost 3 years now. I love it and hate it. I was against getting one, but my mom had to have it and of course I get to be the one to work on it every time it messes up 😂 Thanks for the video.Mar 21, 2023 · 11. Litter-Robot Won’t Cycle Automatically, Doesn’t Detect the Cat. The Litter-Robot Cat Sensor is created for the Litter-Robot to know when the cat enters and exits the unit. Every time the unit is turned on, the Cat Sensor measures the weight of the unit and detects if there are any changes to it. Toll Free: 877-250-7729 www.Litter-Robot.com Setting Up Your Litter-Robot Your Litter-Robot comes fully assembled and ready to use. Get started by following the steps below. Placement If possible, place the Litter-Robot in the same location as the old litter box (at least during transition).1. When your cat exits Litter-Robot, a timer counts down, allowing the litter to clump before a clean cycle begins. 2. During the clean cycle, the globe slowly rotates. The patented sifting process separates the clumps from the clean litter. 3. The clumps are deposited into a sealed waste drawer below. 4. The Litter-Robot is designed for quality to provide you with reliable, trouble-free service, and requires little maintenance. It’s built with solid construction and industrial-grade components. That said, the life expectancy of units can vary based on environment, maintenance, cat behavior, use, etc. ….

Does the weight sensor not work well on carpet? My tray level seems pretty accurate but my litter level is all over the place. Acgator03 • 1 yr. ago No, it will not work well on carpet. I put a small piece of plywood under the one I temporarily had on carpet and it worked perfectly though.Cat Sensor Fault - LR4. I have had the the Litter Robot 4 un boxed for a little less than a day. The potential is great, but I have had only one full cycle without issue and that was when I first turned it on. Ever since then, every single time, I get the red bar and the app reports a cat sensor fault. Hitting the reset the cycle resumes for ~3 ...After 4 years of development, Whisker has announced the Litter-Robot 4. Compared to the Litter-Robot 3, Whisker's newest automatic litter box brings an enhan...The Litter-Robot four-part system (base, globe, bonnet, and drawer) was constructed with easy upkeep in mind. Whether you’re deep-cleaning or replacing a part, the simple modular design allows you to readily access and service your Litter-Robot. We also offer Litter-Robot repair services even after the WhiskerCare™ Warranty expires—just ... Resolve issues with inaccurate cat weight detection in your Litter-Robot 4 using our troubleshooting guide. Learn about weight sensors, proper placement, Bezel cleaning, …Please follow the steps below. Open your app. Go to “Remote” and click “Delete my Litter-Robot.”. Completely close the Litter-Robot app. Reset your Litter-Robot by unplugging it from the base while the unit is powered on. Wait 15 seconds, plug it back in, and allow it to cycle until the blue “Ready” status lights up.The Litter-Robot 4 (first released in 2022), is an automatic, self-cleaning litter box that uses a unique rotating design to clean and separate waste from clean litter. Here’s how it works in its simplest of forms: Stage 1 – After your cat enters and uses the litter box, the Litter Robot 4’s sensor detects the presence of waste and begins ...Few steps: 1: Cut either the black or blue wire. 2: Get a 2k ohm resistor. (I didn't have any so I used a resistor and a potentiometer.) P.s. The litter robot sends 5v to the cat sensor and gets 0,9v back, therefore you need the 2k ohm resistor. 3: Make the pressure point where the cat sensor were placed, to a switch.Quick question. I got a litter robot 2 for about 2 years. It stop working today. The “empty” and “cycle” bottoms doesn’t work but only reset bottom works and “ready” is flashing blue. If I push the “reset” bottom, “cycling” is flashing yellow in 4 times per sec. The problem didn’t solve after I cleaned up pinch pins. Litter-robot 4 weight sensor not working, When the robot gets back to it's start position, I press the reset button to reset the weight sensors. Note2: Sometimes I put three scoops in to purposefully get a more clean to dirty ratio. If I do this I have to press the power button, count to 10 (Alligators or Mississippi's), then power back on (I guess the extra weight confuses it)., If you move the mat forward just a bit so it's not under the cat sensor, this will help elevate the front of the unit. Always press Reset when adding litter, removing waste, or moving the unit. Press Reset with the unit showing a blue solid light. Do not rest on the unit when pressing Reset. Use 8-10 pounds of clay clumping litter (standard ... , 1. Excess Weight (Slow Flash - 1x/sec) If there is excess weight inside the unit, this will cause the motor to slow down/seize and the unit will not complete a cycle in the allotted time frame (~2 minutes, 30 seconds). Please check your litter level to ensure that you are at or below the fill line. Can we ask what brand of cat litter you are using?, Excess litter weight; Check if your cat is still inside the globe and ensure you’ve filled the sand to the proper litter level. Then reset the unit and try again. #4 Yellow and Blue. Solid yellow and blue lights indicate that your device is in an 8-hour sleep mode. As such, the LItter-Robot won’t turn on the clean cycle during these hours., Litter Robot 4 Smart Scale Not Working. The Litter Robot 4 Smart Scale is an innovative device that allows you to monitor your pet’s litter box usage remotely. …, These sensors detect when a cat has entered or exited the unit. If your unit has a red flashing light bar or the unit will not cycle, this indicates that the cat sensor has been triggered for more than 30 minutes. You will also receive a notification on your phone if you use the Whisker App. Successful: If your unit returned home and displays a ..., These sensors monitor for potential pinch conditions at all times. If your unit displays a green and white alternating light bar, this indicates an Anti-Pinch Fault during power up. You will also receive a notification on your phone if you use the Whisker App. First, let’s check inside the Waste Drawer to see if there are any foreign objects ..., 12 someweirdlocal • 1 yr. ago u/litterrobot 4 cetheile • 1 yr. ago My LR3 does something like this when there's too much litter in it. When there's too much litter and it spins it mistakes the movement of the heavy litter for a cat stepping inside. Have you tried removing some of the litter and restarting it? jamjam1090 • 1 yr. ago, Environmental Variables The Litter Robot 4 Cat is designed to be a reliable, automated way to manage your cat's litter box. However, environmental variables can sometimes cause sensor faults in the robot. Temperature changes, dust and pet fur, and other debris can interfere with the robot's sensors, causing it to malfunction., Litter Robot sells pinch sensors probably – just go to their website and do a search. ... Amanda says: at . The reason you were getting errors with the litter level is due to weight. So when it gets stuck sideways, due to overfill, it throws it off balance. So when you remove the excess you need to hit reset and cycle. ... I have tried 4 ..., Cat Sensor baseline weight when pressed whi l e t he uni t i s at Home wi t h a sol i d bl ue l i ght . 3. Test CATS by applying pre ssure t he uni t as described above. 4. I f t he red l i ght t urns on af t er applying excessive pressure, skip t o our T I PS sect i on bel ow and ensure your uni t i s not bei ng desensitized. 5. If CATS d i d not act i vat e, pl ease review t he t …, To help you make a decision, here are some other automatic litter boxes that may be worth considering, depending on which factors are most important to you. 1. A Smart Litter Box For Cats From 1 ..., Protect your kitty with three layers of advanced safety technology that stop moving parts whenever your kitty is detected. 1) A state of the art Radar System that forms a protective wall 2) Four Weight Sensors that detect when kitty is inside the drum 3) An aerospace-grade Anti-Pinch Sensor at the top of the waste drawer, Litter-Robot 4 is equipped with OmniSense™ detection that utilizes laser and weight sensor technology to provide real-time litter and waste drawer levels. OmniSense™ also supports the SafeCat system which continuously analyzes four safety zones to ensure your cat is always safe. There are three laser sensors located in the top of the Bezel ... , The sensors work by sending beams from one sensor to the other, and if the beam is interrupted, the blue light will flash as the Litter-Robot thinks the drawer needs to be emptied. A full tray (with soiled clumps sitting above the tray edge level) will cause the indication, as will a litter bag not well fitted protruding about the tray edge ..., The Litter-Robot 4 is equipped with OmniSense™ detection that utilizes laser and weight sensor technology to provide real-time litter and waste drawer levels. OmniSense™ also supports the SafeCat system which continuously analyzes 4 safety zones to ensure your cat is always safe. There are 3 laser sensors located in the top of the Bezel ..., Aug 10, 2022 · View the Litter-Robot 3 Waste Drawer Liner Installation Video. To change the drawer liner in Litter-Robot 4, pull out the drawer and dispose of the soiled liner. Open a new waste drawer liner and wrap the edges over the rim of the waste drawer. Push the remainder of the bag into the bottom of the waste drawer. Check out the Litter-Robot 4 Waste ... , If you're not familiar with the previous iterations of the Litter-Robot, it's a genius machine that makes sure cat parents never have to scoop the litter box again. A cat enters a globe filled with clumping litter. The globe senses your cat by weight, and thanks to Litter-Robot 4 improvements, by light sensor, too., It should be able to accurately determine the weight of the entire unit, litter, and cat to within a .10 of a pound. So after emptying the waste, filling with litter, and then hitting reset the LR should be able to determine the weight of the cat who enters the LR, simply by subtracting the two values. Hell, it should be able to figure out how ..., Jun 12, 2018 · The unit is pretty sensitive and can pick-up weight from hands, arms, or other objects resting on the unit when “reset” is pressed. The unit should also be pulled away from a wall. Make sure you do not press on the Litter-Robot when you press the reset button. We need to troubleshoot your cat sensor system (CATS). This is based on your description of a solid blue light after the cat has ... , Litter Robot sells pinch sensors probably – just go to their website and do a search. ... Amanda says: at . The reason you were getting errors with the litter level is due to weight. So when it gets stuck sideways, due to overfill, it throws it off balance. So when you remove the excess you need to hit reset and cycle. ... I have tried 4 ..., Our definition of a small cat is 2.3-4.5kg; medium cat is 4.5-6.8kg; large cat is 6.8-9kg; and extra large cat is any cat that weighs more than 9kg. Again, the Litter-Robot does not have an upper weight limit, so whether or not the Litter-Robot will be comfortable for a large or fat cat is up to the individual., 1. When your cat exits Litter-Robot, a timer counts down, allowing the litter to clump before a clean cycle begins. 2. During the clean cycle, the globe slowly rotates. The patented sifting process separates the clumps from the clean litter. 3. The clumps are deposited into a sealed waste drawer below. 4., Fortunately, Litter-Robot 4 addresses all of that. Litter-Robot 4 cleans up your cat’s mess automatically, sweeping any solids or clumped litter into a waste drawer, keeping it out of sight, and eliminating odors. If you ever get frustrated by litter trays, a Litter-Robot will make owning a cat a joy again., However, the design allows litter (debris) to hit the sensor as it falls. Really stupid design. Simplest way to test is to pull out the drawer and run a cycle . If it still blinks blue, then the circuit board is either bad or the sensor is being blocked by something. Wipe the lenses and also get some compressed air and spray the area behind the ... , 29 Jun 2022 ... One time my machine had a "cat sensor fault," which just means the litter box has stopped rotating for some reason. You immediately get a ..., Here is my setup: Use a automatic feeder to feed litter in at 4 am every other day (will add extra hopper to fit a full 40lb bag of fresh litter). Use simple 3 inch PVC parts from home depot for the funnel, if the 90 elbow is rotated to the side - it will not interfere with sensors. Litter robot with a hole in drawer and bottom (line the LR4 ..., The Litter-Robot 4 has a weight storage indicator and informs when it's full. The carbon filter is located on the bottom of the globe above the waste drawer. The Litter Robot 3 has it on the front. The mat on the 4th version seems to collect cat litter much better. The newer modification is quieter., Litter-Robot 4 is a WiFi-enabled, automatic, self-cleaning litter box for cats. ... Laser and weight sensor technology detects cats weighing 3+ lbs. Enhanced safety. The integrated SafeCat System continuously analyzes 4 zones to ensure kitty's safety. Multi-cat friendly. ... They work great. Q: ..., Material Composition. Leo’s Loo cat litter box is made of high-quality plastic that is sturdy and long-lasting. Which is perfect for smaller cats weighing 2 lbs to 4 lbs. The inside of the globe is made of silicone. The Litter Robot-3 is also made of heavy-duty plastic, making its body solid and robust., Yes. Litter-Robot 4 uses laser and weight sensor technology to detect when your cat enters and exits the globe, which triggers the countdown timer and cleaning cycle. The SmartScale™ will not recognize kittens that weigh less than 3 lbs. Therefore, kittens that weigh less than 3 lbs can use Litter-Robot 4, but not in automatic mode. , The surface for your Litter-Robot should be hard to avoid the unit taking on extra absorption of weight. If the unit is sitting steady on the ground, but has a dip in the middle, the sensor may require much more weight to trigger. Instead, try putting the unit on a surface that is flat, such as a board. If your unit is on tile, we recommend ..., These sensors detect when a cat has entered or exited the unit. If your unit has a red flashing light bar or the unit will not cycle, this indicates that the cat sensor has been triggered for more than 30 minutes. You will also receive a notification on your phone if you use the Whisker App. Successful: If your unit returned home and displays a ...