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Dwyer Temperature/Humidity Switch: 0%to 100% Relative Humidity Range - Digital Temperature & Humidity Switches
DwyerDigital Temperature & Humidity Switches

Dwyer Temperature/Humidity Switch: 0%to 100% Relative Humidity Range

The DWYER THC-30 is a digital temperature and humidity switch with a 0% to 100% relative humidity range and a temperature range of -58°F to 302°F. It offers an accuracy of ±0.5% of the temperature probe range and…

SKU 3G-OTH-179761

Also listed as: THC30 · THC 30

Brand
Dwyer
Item
Temperature/Humidity Switch: 0%to 100% Relative Humidity Range
Category
Digital Temperature & Humidity Switches
Available to Order
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Local availability & support — the Philippines

Delivery
5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment
Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to
Manila, Quezon City, Cebu, Davao, Batangas

Technical Specifications

Dwyer
Manufacturer Part Number
THC-30
Type
-58°F to 302°F
Accuracy
±0.5% of Temperature Probe Range
Mounting Style
Panel Mount
Supply Voltage
20 to 250V AC/24V DC

Technical Documents

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Dwyer Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The DWYER THC-30 is a digital temperature and humidity switch with a 0% to 100% relative humidity range and a temperature range of -58°F to 302°F. It offers an accuracy of ±0.5% of the temperature probe range and operates on a supply voltage of 20 to 250V AC/24V DC. This panel-mount device is designed for monitoring and control applications.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is the Dwyer THC-30 temperature/humidity switch used for?

The Dwyer THC-30 is a digital panel-mount switch used for monitoring and controlling temperature and humidity in HVAC, clean rooms, and industrial environments. It measures relative humidity from 0% to 100% and temperature from -58°F to 302°F, providing accurate readings for process control.

What are the specifications of the Dwyer THC-30?

The Dwyer THC-30 has a temperature range of -58°F to 302°F, relative humidity range of 0% to 100%, accuracy of ±0.5% of temperature probe range, and supply voltage of 20 to 250V AC/24V DC. It features panel-mount design and is manufactured by Dwyer.

Where to buy the Dwyer THC-30 worldwide?

3G Electric supplies the Dwyer THC-30 worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time; we source and deliver this panel-mount switch to any country.

How to install the Dwyer THC-30 temperature/humidity switch?

Install the Dwyer THC-30 by mounting it into a panel cutout per the manufacturer's template. Connect the supply voltage (20 to 250V AC/24V DC) to the terminals, ensuring proper polarity for DC. Follow Dwyer's manual for probe placement and wiring; verify accuracy with a reference source after installation.

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 digital temperature & humidity switches. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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DWYER Temp/Humidity Transmitter: 4 to 20 mA, 158°F Op Temp - Max, 32°F Op Temp - Min, RHCN-7000 (MPN 124317-95)
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DWYER Temp/Humidity Transmitter: 4 to 20 mA, 158°F Op Temp - Max, 32°F Op Temp - Min, RHCN-7000 (MPN 124317-94)
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DWYER Temp/Humidity Transmitter: 4 to 20 mA, 158°F Op Temp - Max, 32°F Op Temp - Min, RHCN-7000 (MPN 124317-90)
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DWYER Temp/Humidity Transmitter: 4 to 20 mA, 158°F Op Temp - Max, 32°F Op Temp - Min, RHCN-7000 (MPN 124317-90)
DWYER Humidity Sensor: 4 to 20 mA, Screw Terminals, -4°F to 140°F, 0%to 100% Relative Humidity Range (MPN RHP-2E40)
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DWYER Humidity Sensor: 4 to 20 mA, Screw Terminals, -4°F to 140°F, 0%to 100% Relative Humidity Range (MPN RHP-2E40)
DWYER Humidity/Temperature Transmitter: 0 to 10VDC, 10K Ohm Type 3 Thermistor, Screw Terminals, WHT (MPN WHT-32A)
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DWYER Temperature/Humidity Switch: 0%to 100% Relative Humidity Range, -50°C to 150°C (MPN THC-31)
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