Product Category

Water Leak Detector


Set Sensitivity Freely to Suit the Liquid to Detect



Supply voltage/frequency

100 VAC - 240 VAC 50/60 Hz

Operating voltage range

85% to 110% of rated voltage

Operating frequency range

±5 Hz of the rated frequency

Power consumption

3.2 VA max.

Contact ratings

3 A at 250 VAC (Resistive load (cosφ = 1))
 1 A at 250 VAC (Inductive load (cosφ = 0.4))
 Minimum applicable load 5 VDC, 1 mA (reference value)

Ambient temperature

-10 to +55°C

Ambient humidity

25 to 85% RH

Ambient storage temperature

-10 to +55°C

Ambient storage humidity

25 to 85% RH


Approx. 100 g





Operation resistance

Variable (0 to 50 kΩ)

Operation resistance error

Scale 0: 0 to 10 kΩ *1
 Scale 50: 50 ±10 kΩ

Release resistance

Operation resistance + 50 kΩ or less

Interelectrode voltage


Response time

Operate: 80 ms max.
 Release: 160 ms max.

Startup lock time

3 s after turning on the power supply (The LED blinks during the startup lock time)

Insulation resistance *2

100 MΩ min. (at 500 VDC)

Dielectric strength *2

2000 VAC, 50/60 Hz for 1 min.

Life expectancy

Electrical: 100,000 operations min.
 Mechanical: 5,000,000 operations min.

Approved standards

UL61010-1, CAN/CSA C22.2 No.61010-1
 EN61010-1, EN61326-1
 Industrial electromagnetic environment

1. The Detector may not operate around the setting value of “0”. Adjust the sensitivity depending on the actual application.
 2. The insulation resistance and dielectric strength indicate values between power terminals and Electrode terminals, between power terminals and contact terminals, and between Electrode terminals and contact terminals. Refer to Safety Precautions on Data Sheet.