Dwyer Digital Panel Meter: 9,999 Display Span - Max, 100 V AC – 240 V AC, 132 V DC – 240 V DC
The Dwyer DH-004 is a differential pressure controller with a 9,999 display span LCD panel in a black NEMA 4X enclosure. It features +/-0.5% accuracy, (2) SPDT relays rated at 8A @ 240 VAC resistive, and RS-485…
SKU 3G-OTH-128369
Also listed as: DH004 · DH 004
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.
Need installation or engineering help?
Ask a question
Product Description
The Dwyer DH-004 is a differential pressure controller with a 9,999 display span LCD panel in a black NEMA 4X enclosure. It features +/-0.5% accuracy, (2) SPDT relays rated at 8A @ 240 VAC resistive, and RS-485 communication, with screw clamp terminals for 100-240 VAC or 132-240 VDC power.
Frequently Asked Questions
What is the Dwyer DH-004 differential pressure controller used for?
The Dwyer DH-004 is used to monitor and control differential pressure in HVAC, industrial, and process applications. It provides a 9,999 display span LCD readout and includes (2) SPDT relays for alarm or on/off control, making it suitable for filter monitoring, duct pressure, and cleanroom applications.
What are the specifications of the Dwyer DH-004?
The Dwyer DH-004 has a 9,999 display span LCD, +/-0.5% accuracy, and a black NEMA 4X enclosure. It operates on 100-240 VAC or 132-240 VDC power, includes (2) SPDT relays rated at 8A @ 240 VAC resistive, RS-485 communication, and screw clamp terminals. The manufacturer part number is DH-004.
Where to buy the Dwyer DH-004 worldwide?
You can source the Dwyer DH-004 from 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; we provide competitive pricing and reliable sourcing for this Dwyer differential pressure controller.
How to install the Dwyer DH-004 differential pressure controller?
Install the Dwyer DH-004 by mounting it in a suitable location within its NEMA 4X rated enclosure. Connect differential pressure lines to the appropriate ports, wire power (100-240 VAC or 132-240 VDC) via screw clamp terminals, and connect the (2) SPDT relays and RS-485 as needed. Refer to the included instructions for detailed wiring and configuration.
Used in
Common applications for DwyerDwyer Products
3G Electric supplies Dwyer differential pressure controllers. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
