Johnson Controls HE-68N3-1N00WS Humidity Transmitter 30067439-890 allowing technicians to isolate pressure

allowing technicians to isolate pressure gauges for calibration or replacement without depressurizing the entire system

and Heil air handlers or furnaces

Verify system pressures against the valve’s MOPD rating

or visible bulging and fluid leakage from the capacitor casing

Johnson Controls HE-68N3-1N00WS Humidity Transmitter 30067439-890 allowing technicians to isolate pressureThe Johnson Controls HE 68N3 1N00WS is a professional grade wall mount humidity transmitter engineered for precise atmospheric monitoring in commercial HVAC systems. This unit features a high accuracy 3% humidity sensor integrated with a 1000 Ohm thin film nickel temperature sensing element, providing reliable dual mode feedback for environmental controllers. Designed for versatility in the field, it accepts a wide input range of 14 to 30 Vdc or 20 to