Mounted on the top cover or other places of a water tank, and has stainless steel electrodes with different lengths
Detects the water level when a resistance value changes when water comes into contact with the electrodes with different lengths, which then send signals to the main unit of the level switch

Basic Characteristics

Product summary

Detect the water level of a water tank

Product purpose

Detect the water level of a water tank

Intended use

Used for detecting the water level of a water tank for purposes such as water supply and water drainage in buildings

Operating type

Apply voltage between electrodes with different length grounds, and pass a current when an electrode comes into contact with conductive fluid. (Used with a submergence detector.)

Compatible standard

RoHS compliant

Mechanical Characteristics

Outer dimensions

78 × 88 × 90
(not including electrodes)

Case material

Electrode: SUS 304
Main unit: Phenol PM-GE

Connection terminal type

M6 nuts

Product mounting method

G2 (PF2)-equivalent parallel male thread for pipes

Electrical Characteristics

Circuit diagram

For EHC-3 (tripolar)
For EHC-4 (quadripolar)

Rated voltage


Insulation resistance

500 VDC megohmmeter
10 MΩ or higher

Characteristics Unique to This Product

  • Built-in resistor: 5.1k Ω
  • Usable outdoor
  • Pressure resistance: 2 MPa for one minute