The Johnson Controls SDP2500R8 is a multi-range differential pressure transmitter. It is designed for monitoring air and other non-flammable, non-aggressive gases in HVAC systems. It features 8 selectable measuring ranges, a 0–10 VDC output, and is commonly used for air filter monitoring, fan control, cooling cycles, and damper actuator control.

• Type: Differential Pressure Transmitter
• Series: SDP2500 (R8 variant = 8 selectable ranges)
• Function: Measures differential pressure and converts it into a linear electrical signal.
• Application: Monitoring and controlling airflow, filter status, and pressure in ventilation systems.
• Mounting: Screw-mounted onto flat surfaces or DIN rail TS35 (35×7.5 mm) according to EN 60715.

Specifications