Dwyer Instruments SERIES O-4 Catalog Page

6 FT

2X Ø.875

SERIES O-4

E

[161.48

4

2X .250

2X

OUTSIDE AIR TEMPERATURE SENSOR

NEMA 4X, Removable Terminal Block

E

O

D

I

V

O

N

L

I

N

E

The Series O-4 Outside Air Temperature Sensor is great for monitoring ambient
air temperatures in outdoor applications. The temperature sensors are mounted in a
NEMA 4X enclosure with integral mounting tabs.

FEATURES/BENEFITS

• NEMA 4X weatherproof housing

• Surface or suspension mount

APPLICATIONS

• Agricultural house ventilation

• HVAC and building automation

MODEL CHART
Model Sensor Type Model Sensor Type

O-4A

10k Ω type III thermistor

O-4B

10k Ω type II thermistor

O-4C

3k Ω thermistor

O-4D
O-4E
O-4F

Pt100 Ω RTD
Pt1000 Ω RTD
20k Ω thermistor

6-3/8

.375

]

2-3/4

[69.85]

2x 5/16

[7.94]

2X Ø.188

3

[76.2]

3-31/64

[88.5]

4

[101.6]

1-27/64

[36.12]

1-31/6

[37.70]

YEAR LIMITED

WARRANTY

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 Rating: NEMA 4X (IP66).
Weight: 3 oz (85 g).
Agency Approvals: Meets the technical requirements of EU Directive 2011/65/EU

(RoHS II).

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