Multicolor Easy To Use Water Level Indicators

* Utilized to measure the water level in boreholes, wells and any open underground structures.
* The water level can be read on the measuring tape in meters (m) and centimeters (cm).
* Probe part: made of stainless steel, with water resistance contact point installed inside. When the contact contacts the water surface, the receiving system will be connected. When the contact leaves the water surface, the receiving system will be automatically closed.
* Steel ruler cable part: since the steel ruler and the conductor are combined by plastic technology, it not only prevents the steel ruler from rusting, but also simplifies the operation process, making the measurement more convenient and accurate.
* Receiving system: the buzzer emits continuous beeping sound, which can be selected by turning the switch. No matter what receiving system is used, the reading accuracy is consistent.
* Winding reel: it is composed of winding reel and support. The receiving system and battery are all placed in the core cavity of the winding reel, and the steel ruler cable is wound outside the cavity.

Specification: 20m, 30m, 50 m, 100 m, 150 m, 200 m, 300m