Differential Pressure Gauge, Low Differential Pressure
- Measures the small pressure difference between two pressure sources
- Only suitable for measuring gases, can not measure liquid
- Used in hospitals, laboratories, factories, gas stations and storage tanks
- Same specifications as Series 2000 magnehelic®
- Responsive after-sales service / Customizable /
- High quality / One-year warranty
- The image is for reference; the actual product willbe based on your custom specifications.
Description
The PRMD is a mechanical low differential pressure gauge designed for measuring very small pressure differences in gas-only applications, with ranges from 0–3 mmH₂O up to 0–5000 mmH₂O. Featuring a die-cast aluminum case with an acrylic window, the gauge uses 1/8 NPT(F) connections and offers ±2 to ±4% F.S. accuracy depending on the range. The PRMD supports positive, negative, and differential pressure measurements and includes an adjustable pointer and on-site zero adjustment. It is ideal for hospitals, laboratories, cleanrooms, HVAC systems, filter monitoring, and tank pressure indication. Its specifications match those of the Series 2000 Magnehelic®, and optional mounts include U-clamp, flush panel brackets, and stainless-steel mounting accessories.
Specifications
| Nominal size | 4.5" |
|---|---|
| Scale ranges | 0 ... 3 mmH2O to 0 ... 5000 mmH2O, or other equivalent units of pressure or compound |
| Accuracy | ±2% F.S. to ±4% F.S., upon scale range |
| Process connection | 1/8 NPT (female) |
| Window | Acrylic |
| Case/Ring | Die-cast aluminum |
| Accessories | Screws, connection fittings |
| Accessories (option) | Pipe mounting plate, stainless steel flush mount bracket A, stainless steel flush mount bracket B |
| Pressure limitation | -20 inHg ... 15 psi |
| Medium temperature | -7°C ... 60°C |









