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Series O-4 Outside Air Temperature Sensor

Brand: Dwyer Instruments, LLC

The Series O-4 Outside Air Temperature Sensors are great for monitoring ambient air temperatures in outdoor applications.

The temperature sensors are mounted in a NEMA 4X enclosure with integral mounting tabs. The mounting tabs can be used to surface or suspension mount the temperature sensors. The removable terminal block makes installation easy.

The Series O-4 can be used to measure outside air temperatures in building automation systems or room temperatures inside agricultural ventilation houses.
Features
  • NEMA 4X Weatherproof Housing
  • Surface or Suspension Mount

1 - 7 of 7 Part Numbers
O-45
O-45
DWYER Outside Air Temperature Sensor, 10K Ohm Thermistor.
O-4A
O-4A
DWYER Outside Air Temperature Sensor, 10K Ohm Thermistor, Type III.
  • Sensor Type - 10k Ohm Type III Thermistor
O-4B
O-4B
DWYER Outside Air Temperature Sensor, 10K Ohm Thermistor, Type II.
  • Sensor Type - 10k Ohm Type II Thermistor
O-4C
O-4C
DWYER Outside Air Temperature Sensor, 3K Ohm.
  • Sensor Type - 3k Ohm Thermistor
O-4D
O-4D
DWYER Outside Air Temperature Sensor, Pt100 Ohm RTD.
  • Sensor Type - Pt100 Ohm RTD
O-4E
O-4E
DWYER Outside Air Temperature Sensor, Pt1000 Ohm RTD.
  • Sensor Type - Pt1000 Ohm RTD
O-4F
O-4F
DWYER Outside Air Temperature Sensor, 20K Ohm.
  • Sensor Type - 20k Ohm Thermistor
1 - 7 of 7 Part Numbers

Specifications

Accuracy

  • ± 0.22° C (± 0.4° F) at 25° C (77° F) - Thermistor
  • ± 0.3° at 0° C (± 0.54° at 32° F) - RTD DIN Class B

Cable Length

  • 3.5” (1.06 metres)

Environmental Protection

  • IP66
  • NEMA 4X

Mounting

  • Suspension or Surface

Operating Temperature

  • -40° to 121° C (-40° to 250° F)

Sensor / Probe Diameter

  • 0.235” (5.97 mm)

Sensor / Probe Material

  • 304 Stainless Steel

Sensor / Probe Type

  • RTD - Pt100 ohms, PT1,000 ohms
  • Thermistor - 10 kiloohms (Typical II, Typical III), 3 kiloohms, 20 kiloohms

  • Agricultural House Ventilation
  • HVAC and Building Automation
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