Outdoor Air Temperature Sensors
  • For temperature measurement -40...+85 °C
  • Pt100, Pt500, Pt1000, PTC1000 or NTC sensor
  • Stainless steel sensor stem Ø6xL85 mm
  • 4-20 mA or RS485 Modbus RTU option

ET721 series air temperature sensors are designed for measuring temperatures in dry and damp rooms or outdoors. Applications include building automation, meteorology and labs.

Technical Data
Sensing element Pt100 class A according to EN60751 (as standard)
optional Pt500, Pt1000, PTC1000,
Measurement range -40...+85 °C
Cable connections screw terminal block
2- or 3-wire sensor connection
Dimensions S - H88 × W64 × D42 mm
M - H82 × W80 × D55 mm
Enclosure S - light grey PS, protection class IP65
M - grey ABS, protection class IP65
Operating conditions -40...+85 °C, 0...100 %RH
Protection tube stainless steel Ø6×L90 mm
Output plastic screw terminal,
transmitter 4-20 mA analog
RS485 Modbus RTU protocol digital