Watchman Sonic Oil Tank Gauge Information
The sender fits onto your oil tanks and has its own battery power. The receiver plugs into any electrical socket up to 250 meters away from your tank and displays the level of fuel in your oil tank in 10ths. A red light comes on the attract your attension when the level of fuel in your oil tank is low.
Can easily be fitted to most single skin and bunded plastic oil tanks on the market. Can also be fitted onto a steel oil tank but must be positioned a certain distance from any stays inside the tank or it will not work correctly.