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Dwyer Surface temperature probe S2-1F

The Dwyer S2-1F is a surface temperature probe for industrial process monitoring, featuring ±0.2°C accuracy at 25°C and a 20 kΩ NTC thermistor sensor. Its stainless steel 304 construction and 584 mm wire length suit…

SKU 3G-CBM-02310

Brand
Dwyer
Item
Surface temperature probe S2-1F
Part Number
S21F
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
S21F
accuracy
±0.2°C @ 25°C
wire gauge
22 AWG
sensor type
Thermistance 20 kΩ NTC
probe material
Stainless steel 304
wire length mm
584
probe length mm
25
probe diameter mm
6.3
temperature range
-40 to +125°C

Technical Documents

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

Product Description

The Dwyer S2-1F is a surface temperature probe for industrial process monitoring, featuring ±0.2°C accuracy at 25°C and a 20 kΩ NTC thermistor sensor. Its stainless steel 304 construction and 584 mm wire length suit HVAC, refrigeration, and equipment temperature applications.

Frequently Asked Questions

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

The Dwyer S2-1F surface temperature probe is used for industrial process monitoring, including HVAC, refrigeration, and equipment temperature applications. It measures surface temperature on water pipes, low-pressure steam lines, or refrigeration circuits where immersion is not possible.

What are the specifications of the Dwyer S2-1F temperature probe?

The Dwyer S2-1F features a 20 kΩ NTC thermistor sensor with ±0.2°C accuracy at 25°C. It has a stainless steel 304 probe (25 mm length, 6.3 mm diameter), 584 mm wire length (22 AWG), and operates from -40 to +125°C.

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

You can source the Dwyer S2-1F surface temperature probe through 3G Electric in Singapore. We handle logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this Dwyer model.

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

Mount the Dwyer S2-1F probe directly on the pipe or surface using a clamp or bracket, ensuring good thermal contact. Route the 584 mm Teflon®-insulated wires to your controller, strip 6.3 mm of insulation, and connect to the 20 kΩ NTC input. Avoid bending the probe excessively.

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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