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Dwyer Surface Temperature Probe: -32°F to 240°F /-35.5°C to 115.5°C - Flange-Mount Duct RTDs
DwyerFlange-Mount Duct RTDs

Dwyer Surface Temperature Probe: -32°F to 240°F /-35.5°C to 115.5°C

The DWYER Surface Temperature Probe (MPN S2-21) is a flange-mount duct RTD with a temperature range of -32°F to 240°F / -35.5°C to 115.5°C. It offers an accuracy of ±0.6% at 32°F and includes a 6 ft cable.

SKU 3G-OTH-177577

Brand
Dwyer
Item
Surface Temperature Probe: -32°F to 240°F /-35.5°C to 115.5°C
Category
Flange-Mount Duct RTDs
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Technical Specifications

Dwyer
Manufacturer Part Number
S2-21
Type
±0.6% at 32°F Accuracy
Accuracy
±0.6% at 32°F
Cable Length
6 ft
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Dwyer Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The DWYER Surface Temperature Probe (MPN S2-21) is a flange-mount duct RTD with a temperature range of -32°F to 240°F / -35.5°C to 115.5°C. It offers an accuracy of ±0.6% at 32°F and includes a 6 ft cable.

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 S2-21 surface temperature probe used for?

The DWYER S2-21 is a flange-mount duct RTD used for measuring surface temperature in HVAC ducts and industrial air-handling systems. It monitors air temperature within a range of -32°F to 240°F / -35.5°C to 115.5°C, making it suitable for environmental control and process monitoring applications.

What are the specifications of the DWYER S2-21 temperature probe?

The DWYER S2-21 surface temperature probe has an accuracy of ±0.6% at 32°F, a temperature range of -32°F to 240°F / -35.5°C to 115.5°C, and includes a 6 ft cable. It is a flange-mount duct RTD designed for permanent installation in ductwork.

Where to buy the DWYER S2-21 temperature probe worldwide?

You can source the DWYER S2-21 surface temperature probe through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide locations. Contact us for availability and lead time on this Dwyer probe.

How to install the DWYER S2-21 flange-mount duct RTD?

To install the DWYER S2-21, mount the probe flange securely to the duct surface using appropriate fasteners. Ensure the sensing tip contacts the duct wall for accurate temperature readings. Route the 6 ft cable to the control panel, avoiding sharp bends. Follow Dwyer's installation guidelines for best results.

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 flange-mount duct rtds. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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