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. 

• Built-in float switch.
• 15 minute timer.
• Easy installation.
• Compact design.