This is a reliable instrument for measuring the water level and total depth in boreholes, wells reservoirs etc. For the measurement the bob is lowered to the water level. When touching the level, a sensor effects the illumination of a signal lamp. On request, an additional acoustic signal will be released by a buzzer. When the probe is touching the water-level there is a conductive connection between the tip of the probe and the sensor-body. Thereby a circuit of the lamp and the buzzer will be closed.
Response is seen on LED plus an audible tone is heard. Features include: standard cable length : 50, 100 meter, with marking on ever 1 meter. 1 meter length flexible measurement scale will be provided with this system for fine resolution (1 cm), Reel type spool for lowering cable and electrode assembly. Reel is mounted on a stand. Self contained 9 V battery power supply – no danger of shock from an outside power supply. Standard brass electrode. Reel handles are shaped to fit your hands. Accurate of reading. Each Water Level Indicator is supplied with a battery.