We ship worldwide — Singapore, Australia, Malaysia, Indonesia, Philippines, India, Middle East & more

3G Electric
RFQ CartGet a QuoteSign inSign up
Dwyer Duct Temperature Probe: -40°F to 302°F /-40°C to 150°C, 20,000 ohm - Flange-Mount Duct Thermistor Probes
DwyerFlange-Mount Duct Thermistor Probes

Dwyer Duct Temperature Probe: -40°F to 302°F /-40°C to 150°C, 20,000 ohm

The Dwyer TE-DFN-F0448-00 is a flange-mount duct thermistor probe with a temperature range of -40°F to 302°F (-40°C to 150°C) and an accuracy of +/-0.22°C at 25°C (+/-0.4°F at 77°F). It features a 20,000 ohm…

SKU 3G-OTH-183868

Brand
Dwyer
Item
Duct Temperature Probe: -40°F to 302°F /-40°C to 150°C, 20,000 ohm
Category
Flange-Mount Duct Thermistor Probes
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Technical Specifications

Dwyer
Manufacturer Part Number
TE-DFN-F0448-00
Type
20,000 ohm, Bare Wire
Accuracy
+/-0.22°C at 25°C (+/-0.4°F at 77°F)
Cable Length
8 ft
View Full Spec Sheet

Technical Documents

No technical documents available for this product.
Request documentation →
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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

Product Description

The Dwyer TE-DFN-F0448-00 is a flange-mount duct thermistor probe with a temperature range of -40°F to 302°F (-40°C to 150°C) and an accuracy of +/-0.22°C at 25°C (+/-0.4°F at 77°F). It features a 20,000 ohm thermistor, an 8 ft cable with bare wire termination, and is designed for duct mounting in HVAC applications.

Frequently Asked Questions

What is the Dwyer TE-DFN-F0448-00 duct temperature probe used for?

The Dwyer TE-DFN-F0448-00 is a flange-mount duct thermistor probe used in HVAC systems to measure air temperature inside ductwork. It is suitable for building automation, energy management, and environmental control applications where accurate temperature sensing is required.

What are the specifications of the Dwyer TE-DFN-F0448-00?

The Dwyer TE-DFN-F0448-00 has a temperature range of -40°F to 302°F (-40°C to 150°C), accuracy of +/-0.22°C at 25°C (+/-0.4°F at 77°F), a 20,000 ohm thermistor, and an 8 ft cable with bare wire termination. It is designed for flange-mount duct installation.

Where to buy the Dwyer TE-DFN-F0448-00 worldwide?

You can source the Dwyer TE-DFN-F0448-00 through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time.

How to install a Dwyer flange-mount duct thermistor probe?

Mount the probe flange securely to the duct wall using screws, ensuring the sensing element is fully inserted into the airstream. Connect the bare wire leads to the control system per Dwyer's wiring diagram. Avoid sharp bends in the cable and verify proper sealing to prevent air leaks.

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 thermistor probes. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion →Pumps & Compressors →Spare Parts →All Products →

Similar products

Matched by specification & description
DWYER Duct Temperature Probe: -40°F to 302°F /-40°C to 150°C, 10,000 ohm Resist, 4 in Probe Lg (MPN TE-DFG-B0444-00). Key specifications — Accuracy: +/-0.15°C at 0°C (+/-0.28°F at 32°F); Brand: DWYER.
Dwyer
DWYER Duct Temperature Probe: -40°F to 302°F /-40°C to 150°C, 10,000 ohm Resist, 4 in Probe Lg (MPN TE-DFG-B0444-00). Key specifications — Accuracy: +/-0.15°C at 0°C (+/-0.28°F at 32°F); Brand: DWYER.
DWYER Duct Temperature Probe: -40°F to 302°F /-40°C to 150°C, 10,000 ohm Resist, 8 in Probe Lg (MPN TE-DFG-B0844-00). Key specifications — Accuracy: +/-0.15°C at 0°C (+/-0.28°F at 32°F); Brand: DWYER.
Dwyer
DWYER Duct Temperature Probe: -40°F to 302°F /-40°C to 150°C, 10,000 ohm Resist, 8 in Probe Lg (MPN TE-DFG-B0844-00). Key specifications — Accuracy: +/-0.15°C at 0°C (+/-0.28°F at 32°F); Brand: DWYER.
DWYER Duct Temperature Probe: -40°F to 302°F /-40°C to 150°C, 10,000 ohm Resist, 8 in Probe Lg (MPN TE-DFG-A0844-00). Key specifications — Accuracy: +/-0.22°C at 25°C (+/-0.4°F at 77°F); Brand: DWYER.
Dwyer
DWYER Duct Temperature Probe: -40°F to 302°F /-40°C to 150°C, 10,000 ohm Resist, 8 in Probe Lg (MPN TE-DFG-A0844-00). Key specifications — Accuracy: +/-0.22°C at 25°C (+/-0.4°F at 77°F); Brand: DWYER.
DWYER Duct Temperature Probe: -40°F to 302°F /-40°C to 150°C, 10,000 ohm Resist, 12 in Probe Lg (MPN TE-DFG-B1244-00). Key specifications — Accuracy: +/-0.22°C at 25°C (+/-0.4°F at 77°F); Brand: DWYER.
Dwyer
DWYER Duct Temperature Probe: -40°F to 302°F /-40°C to 150°C, 10,000 ohm Resist, 12 in Probe Lg (MPN TE-DFG-B1244-00). Key specifications — Accuracy: +/-0.22°C at 25°C (+/-0.4°F at 77°F); Brand: DWYER.
DWYER Duct Temperature Probe: -40°F to 302°F /-40°C to 150°C, 10,000 ohm Resist, 4 in Probe Lg (MPN TE-DFG-A0444-00). Key specifications — Accuracy: +/-0.22°C at 25°C (+/-0.4°F at 77°F); Brand: DWYER.
Dwyer
DWYER Duct Temperature Probe: -40°F to 302°F /-40°C to 150°C, 10,000 ohm Resist, 4 in Probe Lg (MPN TE-DFG-A0444-00). Key specifications — Accuracy: +/-0.22°C at 25°C (+/-0.4°F at 77°F); Brand: DWYER.

More from Dwyer

View all Dwyer parts →
DWYER Duct Temperature Probe: -40°F to 302°F /-40°C to 150°C, 10,000 ohm, Bare Wire (MPN TE-DFN-B0848-00). Key specifications — Cable Length: 8 ft; Brand: DWYER; Accuracy: +/-0.22°C at 25°C (+/-0.4°F at 77°F).
Dwyer
DWYER Duct Temperature Probe: -40°F to 302°F /-40°C to 150°C, 10,000 ohm, Bare Wire (MPN TE-DFN-B0848-00). Key specifications — Cable Length: 8 ft; Brand: DWYER; Accuracy: +/-0.22°C at 25°C (+/-0.4°F at 77°F).
DWYER Duct Temperature Probe: -40°F to 302°F /-40°C to 150°C, 10,000 ohm, Bare Wire (MPN TE-DFN-B0448-00). Key specifications — Cable Length: 8 ft; Brand: DWYER; Accuracy: +/-0.15°C at 0°C (+/-0.28°F at 32°F).
Dwyer
DWYER Duct Temperature Probe: -40°F to 302°F /-40°C to 150°C, 10,000 ohm, Bare Wire (MPN TE-DFN-B0448-00). Key specifications — Cable Length: 8 ft; Brand: DWYER; Accuracy: +/-0.15°C at 0°C (+/-0.28°F at 32°F).
DWYER Duct Temperature Probe: -40°F to 302°F /-40°C to 150°C, 10,000 ohm, Bare Wire (MPN TE-DFN-B0648-00). Key specifications — Cable Length: 8 ft; Brand: DWYER; Accuracy: +/-0.15°C at 0°C (+/-0.28°F at 32°F).
Dwyer
DWYER Duct Temperature Probe: -40°F to 302°F /-40°C to 150°C, 10,000 ohm, Bare Wire (MPN TE-DFN-B0648-00). Key specifications — Cable Length: 8 ft; Brand: DWYER; Accuracy: +/-0.15°C at 0°C (+/-0.28°F at 32°F).
DWYER Duct Temperature Probe: -40°F to 302°F /-40°C to 150°C, 10,000 ohm, Bare Wire (MPN TE-DFN-A0648-00). Key specifications — Cable Length: 8 ft; Brand: DWYER; Accuracy: +/-0.15°C at 0°C (+/-0.28°F at 32°F).
Dwyer
DWYER Duct Temperature Probe: -40°F to 302°F /-40°C to 150°C, 10,000 ohm, Bare Wire (MPN TE-DFN-A0648-00). Key specifications — Cable Length: 8 ft; Brand: DWYER; Accuracy: +/-0.15°C at 0°C (+/-0.28°F at 32°F).
DWYER Duct Temperature Probe: -40°F to 302°F /-40°C to 150°C, 10,000 ohm, Bare Wire (MPN TE-DFN-A0444-00). Key specifications — Cable Length: 4 in; Brand: DWYER; Accuracy: +/-0.22°C at 25°C (+/-0.4°F at 77°F).
Dwyer
DWYER Duct Temperature Probe: -40°F to 302°F /-40°C to 150°C, 10,000 ohm, Bare Wire (MPN TE-DFN-A0444-00). Key specifications — Cable Length: 4 in; Brand: DWYER; Accuracy: +/-0.22°C at 25°C (+/-0.4°F at 77°F).
DWYER Duct Temperature Probe: -40°F to 302°F /-40°C to 150°C, 10,000 ohm, Bare Wire (MPN TE-DFN-B0444-00). Key specifications — Cable Length: 4 in; Brand: DWYER; Accuracy: +/-0.22°C at 25°C (+/-0.4°F at 77°F).
Dwyer
DWYER Duct Temperature Probe: -40°F to 302°F /-40°C to 150°C, 10,000 ohm, Bare Wire (MPN TE-DFN-B0444-00). Key specifications — Cable Length: 4 in; Brand: DWYER; Accuracy: +/-0.22°C at 25°C (+/-0.4°F at 77°F).
DWYER Duct Temperature Probe: -40°F to 302°F /-40°C to 150°C, 10,000 ohm, Bare Wire (MPN TE-DFN-B0844-00). Key specifications — Cable Length: 4 in; Brand: DWYER; Accuracy: +/-0.22°C at 25°C (+/-0.4°F at 77°F).
Dwyer
DWYER Duct Temperature Probe: -40°F to 302°F /-40°C to 150°C, 10,000 ohm, Bare Wire (MPN TE-DFN-B0844-00). Key specifications — Cable Length: 4 in; Brand: DWYER; Accuracy: +/-0.22°C at 25°C (+/-0.4°F at 77°F).