Under Ground Water Level Measurement

The very precise piezo-resistive sensor is supported by pressure and temperature compensation.

The output signal is 4-20mA and connecting the transmitter directly to for instance a Mµ Connect RTU

is very easy, providing the option of Level logging, alarms or controlling the pumps.

Enquire Brochure

Expert 7070 is designed by MJK for the drinking water and surface water industry.
The body and the built-in atmospherical air pressure compensation provide stable and trustworthy piezo resistive measurements in boreholes, wells, tanks, water reservoirs and basins worldwide.
Not only does Expert 7070 provide exact and stable measurement, but the construction ensures a long lifetime, low service requirements equals low running cost.
Created in AISL 316L stainless steel and equipped with optional temperature measurement the user can keep track of both level and temperature even in boreholes.
The output signal is provided in 4-20 mA and Expert 7070 has a programmable Zero point, but the entire measuring range can be adjusted by the end-user for individual specifications.

Technical Specifications


Measuring principle	Piezo-resistive (relative pressure)
Measurement accuracy	Better than ± 0.25 % FS @ +10 to 30 °C
Materials	Housing and Diaphragm: Stainless steel (1.4404 / AISI 316 L)
Cable	2 × 0,5 mm2 (pressure) + 5 x 0,15 mm2 (data), shielded, PUR insulation, 1000kg pull strength
Output signal	2-wire 4 - 20 mA (passive transmitter)