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Dwyer Temperature humidity probe WHT-333

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…

SKU 3G-CBM-02159

Also listed as: WHT 333 · WHT-333

Brand
Dwyer
Item
Temperature humidity probe WHT-333
Part Number
WHT333
Category
Measurement
UNSPSC
41112412 — Pressure gauge
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Technical specs
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Local availability & support

Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

Dwyer
Manufacturer Part Number
WHT333
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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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.

Frequently Asked Questions

Where can I buy the Dwyer WHT-333 temperature-humidity probe?

3G Electric is an authorised Dwyer distributor. Order the WHT-333 online or request a quote for bulk quantities. We handle worldwide delivery, customs clearance, and logistics to your facility.

What is the lead time for the Dwyer WHT-333?

Lead time depends on current stock and your location. Contact 3G Electric for a delivery estimate. We source from multiple distribution channels to minimise wait times on industrial sensors.

What output options does the Dwyer WHT-333 provide?

The WHT-333 offers dual output: 4-20 mA or 0-10 VDC selectable. It operates on 10-35 VDC power and measures temperature from -20 to 60°C with ±3% relative humidity accuracy, suitable for HVAC control systems.

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
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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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