Conductivity water sensor WaterSensor BWS

  • No cables required (operation via photovoltaic cell or battery)
  • Robust, non-breakable probe especially for utility rooms
  • Additional room temperature measurement via wireless transmitter


For the detection of accumulations of water at defined horizontal surfaces or positions (e.g. in the area of fittings, washing machines, below pipes, etc.). Suitable for water.


WaterSensor BWS consists of a probe with extension cable and a wireless transmitter with an integrated temperature sensor. The probe features a conductivity sensor at the bottom. The energy required to send an EnOcean telegram is generated by means of a photovoltaic cell in the wireless transmitter. An optional battery can be used for application in darker rooms. WaterSensor BWS cyclically transmits the actual ambient temperature and the logical state of the conductivity sensor (conductive liquid present or not present) and also sends a telegram when the state changes via the integrated EnOcean wireless module to the water valve WaterControl or to the AFRISOhome gateway.
WaterControl can close the water pipe in response to an event message to keep further water from escaping. The AFRISOhome gateway transmits alarm messages and status messages via WLAN or LAN to the person in charge (for example, to the owner, the facility manager, the janitor or other configured contacts); the message includes information on which water sensor has signalled the state transition.
The AFRISOhome gateway in conjunction with additional AFRISO smart home products with EnOcean wireless technology allows the user to configure a whole range of fully customisable, extensible applications.

Technical specifications

Operating temperature range
Ambient: 0/40 °C
Storage: -20/+60 °C
Medium: 1/60 °C

Response level
Approx. 2–3 mm

Temperature measuring range
Measuring range: 0/40 °C
Accuracy: ±1 K

Supply voltage
Energy harvesting (via photovoltaic cell)
or 1/2 AA lithium battery, DC 3.6 V
(with daylight less than 200 lx)

Plastic housing (PC)
Colour: White, similar to RAL 9003
W x H x D: 52 x 40 x 17 mm
Weight: 22 g
Degree of protection: IP 54 (EN 60529)

Housing floor probe BWS 10.2
EEP: A5-30-03
Dimensions Ø x L: 75 x 40 mm
Cable length: 1.80 m

EnOcean wireless
Frequency: 868.3 MHz
Transmission power: Max. 10 mW
Range: 10 to 30 m (depending on room
arrangement and materials in the

Scope of delivery
Wireless transmitter
Sensor BWS 10-2 with connection cable
Without battery

Necessary additional components
WaterControl and/or AFRISOhome gateway