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Dwyer Temperature humidity probe WHT-333

SKU 3G-CBM-02159

Also listed as: DWY 12012 · DWY-12012

Brand

Dwyer

Item

Temperature humidity probe WHT-333

Technical Specifications

Dwyer

sensor type

Thermistor (Dwyer curve A) 

output signal

4 to 20 mA or 0 to 10 VDC 

enclosure rating

NEMA 3S (IP54) 

housing material

ABS

humidity accuracy

3%

temperature range

-20 to 60°C (-4 to 140°F) 

power requirements

10 to 35 VDC 

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SG-based team

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Dwyer Products

3G Electric (S) Pte. Ltd. — Singapore

Product Description

Dwyer WHT-333 is a temperature-humidity probe combining thermistor and capacitive sensing for HVAC and environmental monitoring. Delivers 4-20 mA or 0-10 VDC output across -20 to 60°C with ±3% humidity accuracy. NEMA 3S-rated ABS housing suits indoor control applications requiring reliable dual-parameter measurement.

Used in

Common applications for Dwyer

Combustion air-filter monitoring — Magnehelic Series 2000 on burner air-intake filter banks

Clean-room and pharmaceutical pressurisation — Magnehelic / Capsuhelic differential-pressure gauges

HVAC fan-discharge static pressure — Mark II inclined-vertical manometers on AHU test points

Filter-blockage alarms — Photohelic Series 3000 combined gauge/switch on air-handling units

BMS-integrated pressure monitoring — Digihelic DH3 with 4–20 mA output for building management

Dwyer Products

3G Electric supplies Dwyer measurement. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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