Get your Special Pricing!

Web Price:

$15.64

Availability: This product is currently available to purchase

Orders over $999 ship FREE*

*Free shipping applies within the continental US and weighing less than 50 lbs. Shipping and Returns Terms

Ship to Estimates

Are you from Chicago?

Yes / No

This item ships to

Change

Cancel

*shipping cost are estimated until you complete your order

The product is not cancelable or returnable unless found defective

Speak With a Technical Expert

Hours: 9am - 5pm CDT M-F

Call (847) 773-0645 Email Technical Expert

Documents: O-4A

Series O-4 Catalog Page O-4 IP Test Report More Info

O-4A | Outside air temperature sensor | 10K Ohm thermistor | Type III. | Dwyer

Outside air temperature sensor, 10K Ohm thermistor, Type III.

Brand: DwyerSKU: O-4A

The photo is for representation purposes only and may not be a photo of product being purchased.

Search products similar to O-4A

Suggested Alternatives

ACI A/AN-O-4X OUTSIDE, 4X | Blackhawk Supply

A/AN-O-4X | OUTSIDE, 4X | ACI

Brand: ACI

SKU: A/AN-O-4X

$29.36

Jump to: Overview & Specifications Reviews

Overview Details for O-4A

See catalog product page for full listing

Outside air temperature sensor | 10K Ohm thermistor | Type III.

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

NEMA 4X weatherproof housing
Surface or suspension mount

Specifications

Series: O-4 Outside Air Temperature Sensor
Category/Type: Temperature
Type: Sensors
Series: O-4 Outside Air Temperature Sensor
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).
Agency Approvals: Meets the technical requirements of EU Directive 2011/65/EU (RoHS II).