Litter-Robot 4: Sensors and Functions


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, called Curtain Sensors, as well as a cat sensor weight scale located in the base of the unit. These sensors detect when a cat has entered or exited the unit.

Cat Sensor - Curtain Sensor 

The Litter-Robot is equipped with Curtain Sensors looking downward across the unit opening and into the Globe that detect when a cat enters or exits the Globe while in the Home position. 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. If additional weight is detected during a cycle, the Globe will stop. After 15 seconds of the additional weight exiting, the Globe rotation will resume. Note that each time the unit is powered ON or at the completion of a Clean cycle, the Weight Sensors measure the weight of the unit to use as a baseline, or “zero.” The Weight Scale can be “zeroed” at any time by pressing the Reset button. Press the Reset button to zero the Weight Scale after doing anything that affects the unit's weight. Press Reset firmly and quickly, then watch for the blue Light Bar to flash to confirm you have zeroed the Weight Scale. Be careful not to rest on the unit as you press the button or your weight will influence the reading.


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