Ultrasonic water level sensor FT002

this ultra sonic level sensor was bought from China for about 50 Singapore dollar.
for this value it provides a reasonably exact level of my 10m high well tank.
i m using solar power instead of batteries as my first set was spoiled from leaking batteries.
need to have some patience for the wireless communication between the sensor on the tank and the controller.
my experience with the distance between sensor and controller is rather not so great ... a wall inbetween will limit greatly.
beside this make sure you have at least 0.5m head space from max level to sensor.

[@eng.wandeson]

Very good friend! Is there any problem if the ultrasonic meter is fixed in a place with an open lid?