![Multi-channel SP Water Detector](https://d27wgn5g4t3wja.cloudfront.net/products/0f36b8ba-6020-4126-b091-4ae9b6f61625/400777.png)
Multi-channel SP Water Detector
WDZD-30 - Langeo Co., Ltd. (BTSK)
This instrument is available to monitor the changes of underground electrical resistivity by measuring the intensity of electrical field, then analysing the position and depths of underground water.