Complete Solution
Need installation, maintenance, or a bundled quote?
Our engineers can help with product selection, system design, installation, and ongoing service — all from one partner.
Quick Inquiry
Worldwide Shipping
Datasheet on Request
1-Day Quote
Sign in to view pricing
Create a free account to submit your RFQ and download technical documents.
Pair with a Service
Solutions Engineering
Need guidance on product selection or system design?
Contact Our Engineering TeamDwyer Products
3G Electric (S) Pte. Ltd. — Singapore
Product Description
Dwyer O-4E is a waterproof RTD temperature sensor with IP66 rating for industrial process monitoring and control. Features DIN class B accuracy of ±0.3°C at 0°C and 3.5 inch 304 stainless steel probe. Suits suspended or surface mounting in harsh environments.
Used in
Common applications for DwyerCombustion 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 measurement. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
You might also need
More from Dwyer
View all Dwyer parts →
Need a complete solution?
Product selection, system design, installation, and ongoing maintenance — all from one partner.