Battery-less Water Leak Sensor

Battery-less Water Leak Sensor

The CLEAN-Boost® battery-less water leak sensor requires no power supply as it uses leaking water to generate the electricity it needs to send an alert that a water leak has occurred.
There is thus no need to install a battery, power supply or communication cables. This eliminates installation work and minimizes costs enabling easy installation in equipment, an existing building or facility. It simplifies installation of the sensor for quick detection of problems in existing facilities as no costly, large-scale installation work is required.

The battery-less water leak sensor saves labor as no one is required to make periodic checks for rain water or other water leaks.
Again, maintenance costs are minimized since battery replacement is not required.

The sensor consists of a wireless tag and sensor ribbon.

Major places of installation


Kitchens, toilets, bathrooms or other locations where water is used, or where there are water pipes, waste water pipes or other plumbing, or places exposed to rain water leaks in ordinary homes, condominiums or apartments

2Shopping malls

Locations where water is used, or where there are water pipes, waste water pipes or other plumbing or places exposed to rain water leaks in shopping malls or commercial facilities

3Public facilities

Stations, airports and other public facilities or infrastructure facilities


Piping installations in plants

5Server facilities

Server facilities, control rooms, equipment facilities and other locations where water is undesirable

Concrete usage scenarios

Under-floor areas

Server facilities, control facilities, equipment facilities and other locations where water is undesirable


Utility tunnels

Detects the ingress of water in utility tunnels built for electricity and communication cables

Utility tunnels


Detects water leaks caused by loose pipe joints or
deteriorating valves



Detects water leaks due to equipment failures


Cooling water

Quickly notifies personnel of water ingress in a facility housing equipment that must not be exposed to cooling water leaks or leaking rain water



  • No power supply work is required as the sensor does not require a battery and a power supply.
  • Uses BLE (Bluetooth Low Energy®) and requires no cable work
  • Has no battery and requires no maintenance
  • Detects minute water leaks
  • The sensor works regardless of where water drops fall or how long the sensor ribbon is
  • The sensor ribbon can be extended
  • The sensor ribbonⅡ can be used repeatedly 



  • Detection limit of water amount: 150 μl min. @25℃ 40%RH*1
  • Output delay time: 300sec max. @25℃ 40%RH*2
  • Detectable temperature: +5 to +85°C (operation temperature of wireless tag: -10 to +60°C)
  • Radio system: Bluetooth Low Energy® Bluetooth 4.2
  • Frequency range: 2402 MHz ~ 2480 MHz
  • Transmission power: 0 dBm typ.

*1. @sensor ribbonⅠ. The sensor ribbonⅡ detection limit of water amount: 100μl min.@25℃ 40%RH
*2. @sensor ribbonⅠ. The sensor ribbonⅡoutput delay time: 60sec max.@300μl, 25℃40%RH

* This battery-less water leak sensor does not come with a receiver. Set the Bluetooth 4.2 compatible receiver to beacon mode.


  • Wireless tag/ S-CBTGAAAC: 148 x 8 x 5 mm (main unit: 90 x 8 x 5 mm)
  • Sensor ribbonⅠ 0.5m: S-CBSSAAAC-001 (700 x 13 x 8 mm)
  • Sensor ribbonⅠ 2.0m: S-CBSSAAAC-002 (2200 x 13 x 8 mm)
  • Sensor ribbonⅠ 5.0m: S-CBSSAAAC-003 (5200 x 13 x 8 mm)
  • Sensor ribbonⅡ 0.5m: S-CBSSAABI-201 (740 x 13 x 5 mm)
  • Sensor ribbonⅡ 2.0m: S-CBSSAABI-202 (2240 x 13 x 5 mm)
  • Sensor ribbonⅡ 5.0m: S-CBSSAABI-203 (5240 x 13 x 5 mm)

Wireless tag: S-CBTGAAAC

Wireless tag

Sensor ribbonⅠ: S-CBSSAAAC-003, 002, 001

sensor ribbon1

Sensor ribbonⅡ: S-CBSSAABI-203, 202, 201

sensor ribbon2

Comparison of sensor ribbon appearance

Comparison of sensor ribbon appearance

Wireless tag and sensor ribbon connection

Sensor ribbon

Sensor ribbon connection

Connecting ribbons

Optional products

Alive monitoring timer

  • An optional product that performs alive monitoring to detect battery-less water leak sensor failures, wireless communication interference and other system issues.

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