Series O-4 Outside Air Temperature Sensor

NEMA 4X, Removable Terminal Block

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.

For models with resistive thermistors or RTD outputs, please click here for temperature to resistance lookup tables.

Product Applications

Agricultural house ventilation
HVAC and building automation

Starting at $14.70

Ordering

Grouped product items
Model	Description	Availability*	Price
O-45	Outside air temperature sensor, 10K Ohm thermistor.	1-3 days*	$14.70
O-4A	Outside air temperature sensor, 10K Ohm thermistor, Type III.	1-2 Weeks*	$14.70
O-4B	Outside air temperature sensor, 10K Ohm thermistor, Type II.	1-2 Weeks*	$14.70
O-4C	Outside air temperature sensor, 3K Ohm.	1-2 Weeks*	$18.70
O-4D	Outside air temperature sensor, Pt100 Ohm RTD.	1-2 Weeks*	$18.80
O-4E	Outside air temperature sensor, Pt1000 Ohm RTD.	1-2 Weeks*	$18.55
O-4F	Outside air temperature sensor, 20K Ohm.	1-2 Weeks*	$14.80

Specifications

Accuracy:: Thermistor temperature sensor: ±0.22°C @ 25°C (±0.4°F @ 77°F);
RTD temperature sensor: DIN class B: ±0.3°C @ 0°C (±0.54°F @ 32°F).
Operating Temperature:: -40 to 250°F.
Probe Diameter:: 0.235" (5.97 mm)
Probe Length:: 3.5".
Probe Material:: 304 SS.
Mounting:: Suspension or surface.
Enclosure:: NEMA 4X (IP66).
Weight:: 3 oz (85 g).
Compliance:: Meets the technical requirements of EU Directive 2011/65/EU (RoHS II).