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Dwyer Surface temperature probe S2-18 - Measurement
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Dwyer Surface temperature probe S2-18

The Dwyer S2-18 is a surface temperature probe using a 100 kΩ NTC thermistor sensor, delivering ±0.2°C accuracy at 25°C. With a 584 mm cable and stainless steel 304 construction, it operates from -40 to +125°C…

SKU 3G-CBM-02309

Also listed as: S 218 · S-218

Brand
Dwyer
Item
Surface temperature probe S2-18
Part Number
S218
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
S218
accuracy
±0.2°C @ 25°C
wire gauge
22 AWG
sensor type
100 kΩ NTC Thermistor
wire length
584 mm (23 inches)
probe length
25 mm
probe diameter
6.3 mm
probe material
Stainless steel 304
operating temperature
-40 to +125°C

Technical Documents

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

Product Description

The Dwyer S2-18 is a surface temperature probe using a 100 kΩ NTC thermistor sensor, delivering ±0.2°C accuracy at 25°C. With a 584 mm cable and stainless steel 304 construction, it operates from -40 to +125°C, fitting industrial process monitoring and HVAC applications.

Frequently Asked Questions

What is the Dwyer S2-18 surface temperature probe used for?

The Dwyer S2-18 is used for measuring surface temperature on pipes in HVAC and industrial process monitoring. It is ideal for applications where immersion is not possible, such as chilled water lines or low-pressure steam pipes.

What are the specifications of the Dwyer S2-18?

The Dwyer S2-18 uses a 100 kΩ NTC thermistor sensor with ±0.2°C accuracy at 25°C. It has a 584 mm cable, 25 mm probe length, 6.3 mm diameter, stainless steel 304 construction, and operates from -40 to +125°C.

Where to buy the Dwyer S2-18 in Singapore?

You can source the Dwyer S2-18 through 3G Electric in Singapore. We handle logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this surface temperature probe.

How to install the Dwyer S2-18 surface temperature probe?

Mount the probe firmly against the pipe surface using a clamp or bracket for good thermal contact. Ensure the cable is routed without sharp bends. The Dwyer S2-18 is designed for surface mounting where immersion is not possible.

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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