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Dwyer Surface temperature probe S2-1B

The Dwyer S2-1B is a surface temperature probe designed for industrial process monitoring and control applications. It features a 304 stainless steel construction with 25 mm probe length and 6.3 mm diameter…

SKU 3G-CBM-02306

Brand
Dwyer
Item
Surface temperature probe S2-1B
Part Number
S21B
Category
Measurement
UNSPSC
41112412 — Pressure gauge
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

Dwyer
Manufacturer Part Number
S21B
wire length
23 inches
probe length
25 mm
probe diameter
6.3 mm
probe material
304 stainless steel
thermistor accuracy
±0.2°C @ 25°C
operating temperature
-40 to +125°C

Technical Documents

(1)
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Dwyer Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The Dwyer S2-1B is a surface temperature probe designed for industrial process monitoring and control applications. It features a 304 stainless steel construction with 25 mm probe length and 6.3 mm diameter, delivering ±0.2°C accuracy at 25°C across an operating range of -40 to +125°C. The 23 inch lead wire supports integration into OEM equipment and panel-mounted installations.

Frequently Asked Questions

What is the Dwyer S2-1B surface temperature probe used for?

The Dwyer S2-1B is a surface temperature probe for industrial process monitoring and control. It measures surface temperature on water pipes, low-pressure steam lines, or refrigeration circuits where immersion is not possible. Common in Singapore's HVAC, food processing, and chemical plants.

What are the specifications of the Dwyer S2-1B?

The Dwyer S2-1B features a 304 stainless steel probe 25 mm long and 6.3 mm in diameter, with a 23-inch lead wire. It uses a 10 kΩ Type III NTC thermistor with ±0.2°C accuracy at 25°C, operating from -40 to +125°C. The Dwyer brand ensures reliable OEM-grade performance.

Where to buy the Dwyer S2-1B in Singapore?

3G Electric supplies the Dwyer S2-1B surface temperature probe to Singapore. We handle logistics, customs clearance, and local delivery. Contact our team for pricing and lead time. We source genuine Dwyer instruments for industrial process monitoring applications.

How to install the Dwyer S2-1B surface temperature probe?

Mount the Dwyer S2-1B probe directly against the pipe or surface using a clamp or adhesive for good thermal contact. Route the 23-inch Teflon-insulated lead wires to your controller, avoiding sharp bends. Ensure the probe is not submerged; it is designed for surface contact only.

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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