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DwyerMeasurement

Dwyer Sealed temperature sensor O-4A

The Dwyer O-4A is a sealed temperature sensor featuring a 10kΩ Type III Thermistor with 304 stainless steel construction and IP66 protection for industrial process monitoring. Operating range spans -40 to +125°C with…

SKU 3G-CBM-02319

Brand
Dwyer
Item
Sealed temperature sensor O-4A
Category
Measurement
UNSPSC
41112412 — Pressure gauge
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Technical specs
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Local availability & support

Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

Dwyer
type
Sealed temperature sensor
accuracy
DIN class B ±0.3°C @ 0°C (for RTD models)
mounting
Suspension or surface
sensor type
10kΩ Type III Thermistor
probe material
304 stainless steel
protection class
IP66
probe diameter mm
5.97
probe length inches
3.5
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 O-4A is a sealed temperature sensor featuring a 10kΩ Type III Thermistor with 304 stainless steel construction and IP66 protection for industrial process monitoring. Operating range spans -40 to +125°C with a 5.97 mm probe diameter and 3.5 inch length, suitable for suspension or surface mounting applications.

Frequently Asked Questions

Where can I buy the Dwyer O-4A sealed temperature sensor worldwide?

3G Electric is an authorized Dwyer distributor supplying the O-4A globally. We handle logistics, customs clearance, and delivery to your facility. Request a quote or lead time for your order.

What is the lead time and shipping process for the Dwyer O-4A?

Lead times vary by region and order volume. Contact 3G Electric with your location and quantity for a delivery timeline. We arrange all logistics and clearance documentation for worldwide shipments.

What temperature range and probe specifications does the Dwyer O-4A offer?

The O-4A operates from -40 to +125°C with a 10kΩ Type III Thermistor sensor. It features a 5.97 mm diameter probe, 3.5 inch length, 304 stainless steel construction, and IP66 protection for industrial process applications.

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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