Johnson Controls HE-68N3-0N00WS Humidity Transmitter

The Johnson Controls HE-68N3-0N00WS is a professional-grade wall mount humidity transmitter engineered for precise atmospheric monitoring in commercial HVACR environments. This unit serves as the direct replacement for HE-67N3-0N0BT, integrating a high-performance 1000 Ohm thin film nickel sensing element to deliver stable temperature data alongside relative humidity readings. Designed for seamless integration with BAS (Building Automation Systems), the transmitter features user-selectable outputs of 0-5 VDC or 0-10 VDC via onboard DIP switches, ensuring compatibility with a wide array of HVAC controllers. With a ± 3% humidity accuracy across a 10% to 90% RH calibrated range, this sensor is ideal for maintaining strict indoor air quality standards. The HE-68N3-0N00WS humidity sensor operates on a versatile power input of 14-30 VDC or 20-30 VAC, making it a reliable choice for contractors looking for a robust, no-setpoint override solution with a standard 80 x 80 mm enclosure footprint.

Key Benefits

• Universal humidity transmitter replacement for discontinued HE-67 series models, minimizing downtime during retrofits.
• Integrated 1000 Ohm Nickel RTD provides accurate temperature feedback without the need for a secondary wall-mounted device.
• Field-selectable 0-10 VDC humidity output and 0-5 VDC options allow for rapid onsite configuration to match controller requirements.
• Durable thin film nickel sensing element ensures long-term signal stability and resistance to typical environmental contaminants.
• Streamlined screw clamp terminal block supports 16 to 24 AWG wiring, simplifying the termination process for field technicians.

Common Questions

Is the HE-68N3-0N00WS compatible with older Johnson Controls systems?
Yes, this model is the official HE-67N3-0N0BT direct replacement and is designed to work with most application-specific controllers (ASCs) and universal building automation inputs that accept standard resistive nickel or VDC signals.

Does this unit allow for manual setpoint adjustments by the building occupants?
No, the HE-68N3-0N00WS is a "no setpoint adjustment" model. This is specifically used in applications where centralized control is required and local tampering with temperature or humidity settings must be prevented.

What are the power requirements for this humidity transmitter?
The device is highly flexible, supporting 14 to 30 VDC or 20 to 30 VAC. It also includes a power supply selection DIP switch to optimize performance based on the specific input voltage used in your HVACR installation.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.