HYDROS 21 Conductivity Sensors

             A compact 3.4 cm diameter water level sensor that fits into tight spaces, the HYDROS 21 CTD sensor is a low-cost, durable, and easy-to-use tool for monitoring EC, temperature, and depth in both groundwater and surface water. More importantly, it's an all-in-one instrument. When used with the ZL6 data logger or any other logging system, you won't require an additional sensor for measuring—and referencing—barometric pressure. With a range of 0 to 120 dS/m and a measuring depth of 10 m, the sensor makes accurate depth and EC measurements for a broad range of applications.