20 pack of the market leading Watchman Sonic Oil Level Monitor, consists of a transmitter and receiver unit for each monitor.
The transmitter unit is fitted to the tank and measures the level of fuel inside. This information is relayed wirelessly to the receiver unit, which cleverly and conveniently plugs into a standard 3 pin domestic socket, where it is displayed via an easy to read LCD display.
How the Watchman Sonic Oil Level Monitor works:
- The transmitter sits on top of the tank and using ultrasonic level measurement techniques, constantly measures the level of oil in the tank.
- It then transmits that information to the receiver which is plugged into an electric wall socket, located in a convenient place within the house.
- The height of the liquid is displayed on a LCD screen on the receiver. The householder can monitor the level of oil in their tank from inside their home.
- When the level of oil in the tank gets below 10%, the fuel dispensing pump symbol appears, and an option of a buzzing tone, indicating to the householder that it is time to order some more oil.
Watchman Display:
Bar graph level display, 10% tank height per bar.
Early warning indication (flashing tank fill)at a predetermined height above tank bottom.
Tank empty warning flashes red LED at a predetermined height from tank bottom.
Max Distance:
200m in normal “line of sight” conditions.
Influenced by external sources that may reduce the range of the transmitter or sensitivity of the receiver.