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Product at a glance

SES 003 is a wired sensor designed to measure the surface temperature of hot water flow pipes and hot water tanks in central heating applications. It is used in combination with SES 302 or SES 303 in a Z-Wave network.


  • Accurate surface temperature measurement
  • Optimised for use with SES302, SES303
  • Designed for single-sensor applications
  • Supplied with thermal pad for optimal heat transfer with metal surfaces
  • Can be installed on a water tank, using supplied tank housing over-pipe adapter
  • Supplied with four-metre communications cable


Measurement range (low) 0 °C to +65 °C
Measurement accuracy (low) ±0.5 °C
Measurement range +66 °C to +85 °C
Measurement accuracy ±1 °C
Dimensions (W x H x D) 20 mm x 79 mm x 24 mm (pipe sensor)
69 mm x 83 mm x 28 mm (tank sensor)
Weight 0.2 kg (approx.)
Case material Flame-retardant thermoplastic
Storage temperature -20 °C to +85 °C
Humidity (relative) 0% to 95%
Atmospheric pressure 980 hPA to 1035 hPa
Standards IEC 61010-1