Toilets & Under Sinks

For toilets, place the Water Leak Sensor 1 on the floor, near or behind the toilet. Place one sensor under each sink, ideally under each drain pipe trap. See also: Water Leak Sensor 2. 

Toilets & Under Sinks

Hang the Water Leak Sensor 2 from the included mounting hook, or mount it with the optional ruggedized wall-mount bracket. Place the cord on the floor, along the wall, behind the toilet and/or below sinks. The cord can also be laid across the floor, but use care to avoid it being stepped on, and it should be moved when the floor is mopped, etc. Extension cords in 4' (1 meter) and 10' (3 meter) lengths are available. 
See also: Water Leak Sensor 1

With a Water Level Monitoring Sensor you can:

Detect runaway toilets from internal leaks or stuck flappers, track usage (often helpful for elder care and healthcare applications), automate bathroom exhaust fans (YoLink smart light switch required)

Smart Toilet

Detect water leaks on the floor with the Water Leak Sensor 2. Detect internal leaks or a blocked flapper or "runaway toilet" with the Water Level Monitoring Sensor. 
Additional applications: Track toilet usage in the app, Automate exhaust fans (YoLink smart switch required)