Pipe surface Temperature Sensors
  • For surface temperatures from -40 to +90 °C
  • Mounting on water pipes with metal straps
  • Pt100, Pt500, Pt1000, PTC1000 or NTC sensor
  • Grey plastic terminal box, bottom surface sensor
  • 4-20 mA, 0-10 V or RS-485 Modbus RTU

ET741 series pipe surface temperature sensors are designed for measuring temperatures of hot water pipes in HVAC applications.

Technical Data
Sensing element Pt100 class A according to EN60751 (as standard)
optional Pt500, Pt1000, PTC1000
Measurement range -40...+90 °C
Cable connections screw terminal block
2- or 3-wire sensor connection
Dimensions S - H88 × W65 × D43 mm
M - H85 × W80 × D55 mm
Enclosure S - light grey PS, protection class IP55
M - grey ABS, protection class IP66
Operating conditions -40...+85 °C, 0...100 %RH
Output plastic screw terminal
transmitter 4-20 mA / 0-10 V analog
RS485 Modbus RTU protocol digital

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