Description
Honeywell TR21-WKU Wireless Wall Sensor Kit Overview
The Honeywell TR21-WKU is a complete wireless wall sensor kit that includes both a wall-mounted temperature sensor and a receiver, delivering reliable, wire-free temperature sensing for commercial and residential HVAC control applications. With tight ±1°F accuracy and a broad operating temperature range, this kit simplifies installation while maintaining professional-grade performance.
Key Features
- Complete kit includes wireless wall sensor and receiver — no additional components required
- ±1°F (±1°C) temperature accuracy for precise environmental monitoring
- Sensor operating temperature range: 45°F to 99°F
- Receiver operating temperature range: -40°F to 150°F — suitable for mechanical room or panel mounting
- Setpoint temperature range: 55°F to 85°F
- Operating humidity: 5–95% RH, non-condensing
- Wireless design eliminates the need for sensor wiring runs, reducing installation time and labor costs
- Wall-mount sensor for occupant-space temperature sensing
Operating Specifications
- Sensor Operating Temperature: 45°F – 99°F
- Receiver Operating Temperature: -40°F – 150°F
- Temperature Accuracy: ±1°F
- Setpoint Temperature Range: 55°F – 85°F
- Operating Humidity: 5–95% RH, Non-Condensing
Applications
- Commercial HVAC zoning and building automation systems
- Remote temperature sensing where wiring is impractical
- Retrofit installations requiring wireless sensor solutions
- Integration with compatible Honeywell controllers and building automation equipment
Why Choose the Honeywell TR21-WKU?
The TR21-WKU takes the complexity out of remote temperature sensing. By pairing a precision wall sensor with a dedicated receiver in a single kit, Honeywell ensures seamless compatibility and out-of-the-box functionality. The wide receiver operating range (-40°F to 150°F) makes it adaptable to challenging installation environments, while the non-condensing humidity rating ensures long-term reliability in real-world conditions.
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