TR20 Series are a family of direct-wired wall modules that are compatible with many Honeywell controllers. These wall modules provide the accurate temperature readings and reliability expected from Honeywell sensors.Features & Benefits:"|Temperature Sensor: TR21-A: 20K ohm NTC: Non Linear
- Maximum Operating Ambient Temperature : 99°F; 37.2222222222222°C
- Overall Height : 4.7244094488189in; 120mm
- Regulatory Approvals : FCC Part 15 Class B
- Overall Width : 3in; 76.2mm
- Maximum Shipping & Storage Temperature : 149.9°F; 65.5°C
- Minimum Shipping & Storage Temperature : -40°C; -40°F
- Mounting Type : Wall
- Humidity Sensor Output : 4 to 20mA