AG-DPS-400 Differential Pressure
Duct Differential Pressure Sensor
MEMS duct DP sensor for AHU filter monitoring and variable-speed fan control
4–20 mA 0–10 V Modbus RTU
Features
- MEMS element — no silicone oil, suitable for hygienic HVAC applications
- Pitot tube inlets included for direct duct-mount installation
- Zero-point calibration via push-button or BMS digital command
- Relay output option for direct filter change alarm without BMS input
Enquire about this product
No forms — email directly to sales@agcontrolli.com
24-month warranty · Technical support included
Specifications
| Measuring Range | 0–250 Pa / 0–500 Pa / 0–1000 Pa / 0–2500 Pa (specify) |
| Accuracy | ±2.5% FS |
| Sensing Technology | Piezo-resistive MEMS |
| Output Signal | 4–20 mA, 0–10 V DC, RS-485 Modbus RTU |
| Supply Voltage | 18–30 V DC |
| Static Pressure Max | 5 kPa (overpressure 100 kPa) |
| Ambient Temperature | 0 to +55°C |
| Mounting | Duct flange with pitot tube inlets, or remote tubing |
| Protection Rating | IP54 |
| Certifications | CE, RoHS |
Applications
- AHU filter differential pressure and change-out alarm
- Variable-speed fan pressure setpoint control
- Supply/return duct pressure differential monitoring
Compatible Platforms
Reliable Controls MACH-ProSysSiemens Desigo CCHoneywell EBISchneider EcoStruxureJohnson Controls Metasys
Works with any BMS that accepts 4–20 mA / 0–10 V / Modbus RTU signals.
Other BMS & HVAC Sensors
AG-CO2-100
Room CO₂ Sensor with Display
NDIR CO₂ and temperature room sensor with LCD for demand-controlled ventilation
4–20 mA0–10 VModbus RTU
AG-CO2-200 Duct CO₂ Sensor
Duct-mount NDIR CO₂ sensor for AHU return air demand ventilation control
4–20 mA0–10 VModbus RTU
AG-THR-300 Temperature & Humidity BMS Sensor
Wall-mount BMS T+RH sensor with large LCD and lockable setpoint adjustment
4–20 mA0–10 VModbus RTU
Ready to specify?
Send us your pipe size, media, range and protocol — we'll confirm availability and lead time.
sales@agcontrolli.com