The FT0021 Ultrasonic water tank lever meter is an inexpensive solution for remotely measuring water tank levels. The sensor works by measuring the time required for an ultrasonic pulse to travel to and from a target surface.

The wirelss signal transmits up to 300 feet for easy viewing in the comfort of your home on the LCD display.

Feature: 
1. Monitors tank liquid depth level
2. Tank liquid level displayed on a 10-element LCD bar graph
3. Min/max records of tank liquid level
4. Tank liquid level high/low alarm
5. Tank liquid empty alert
6. Indoor temperature (ºF or ºC) 
7. Tank temperature (ºF or ºC)
8. Time alarm
9.  Free Standing or wall hanging