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

Models & Ordering

Shipping Information

All shipping times are dependent on product availability at time of shipment.

Although we make every effort to ensure a continuous supply of our products, occasional circumstances may force us to temporarily run out of a product, or have shipping delays. Should this occur, customers will be notified soon after placement of any orders for such products and, if applicable, items will be put on backorder. For orders requiring expedited shipment, our customer service team can be contacted to confirm product availability

Model Description Usually Ships* Price Order
O-45
Ships: Same Day
Price: $10.50
Outside air temperature sensor, 10K Ohm thermistor. Same Day* $10.50 Order
O-4A
Ships: 1-2 Weeks
Price: $10.50
Outside air temperature sensor, 10K Ohm thermistor, Type III. 1-2 Weeks* $10.50 Order
O-4B
Ships: 1-2 Weeks
Price: $10.50
Outside air temperature sensor, 10K Ohm thermistor, Type II. 1-2 Weeks* $10.50 Order
O-4C
Ships: 1-2 Weeks
Price: $13.50
Outside air temperature sensor, 3K Ohm. 1-2 Weeks* $13.50 Order
O-4D
Ships: 1-2 Weeks
Price: $13.50
Outside air temperature sensor, Pt100 Ohm RTD. 1-2 Weeks* $13.50 Order
O-4E
Ships: 1-2 Weeks
Price: $13.50
Outside air temperature sensor, Pt1000 Ohm RTD. 1-2 Weeks* $13.50 Order
O-4F
Ships: 1-2 Weeks
Price: $10.50
Outside air temperature sensor, 20K Ohm. 1-2 Weeks* $10.50 Order

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.
Temperature Sensor:
Curves A,B,C; Thermistor; Curves D,E; Platinum RTD DIN 385. (See R-T Lookup Table).
Mounting:
Suspension or surface.
Enclosure:
NEMA 4X (IP66).
Weight:
3 oz (85 g).
Agency Approvals:
Meets the technical requirements of EU Directive 2011/65/EU (RoHS II).

Features

  • NEMA 4X weatherproof housing
  • Surface or suspension mount

Videos

Product Literature

Catalog Pages

Approvals

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