The Watchman Alarm uses a transmitter on top of the tank and ultrasonic level measurement techniques to measure continually, the level of oil in a tank; with an additional alarm when there is a dramatic drop in oil levels for security and peace of mind.
One model fits all tanks
Quick and easy to install
Suitable for steel or plastic tanks
12 months replacement guarantee
Low power consumption
200 metre transmitter to receiver range
Additional alarm when there is a dramatic drop in oil levels