Honeywell TR21/U Non-Linear Temperature Wall Module 20 K Ohm Ntc

Product Description

The Honeywell TR21/U is a non-linear temperature wall module with a 20 K Ohm NTC sensor. This module is designed for use with a wide range of Honeywell controllers, including Excel 600, 500, 100, and 80 controllers, Excel 10 W7750, W7751A, W7752, and W7753 controllers, W7761 Controller, and Spyder Unitary Controllers.

• Models with user-selectable setpoint adjustment dials
• Occupied/unoccupied override with LED
• Optional 3 or 5-position fan switch

Product Highlights

This wall module offers advanced temperature sensing capabilities combined with flexible installation options. Available features include setpoint adjustment, humidity sensing, and LED indicators for occupied/unoccupied status.

Product Information

Standard Information

• Brand: Honeywell
• MPN: TR21/U
• Category: Temperature Probes & Sensors
• Application: Wall Module Networked Sensor

Technical Specifications

• Color: White
• Mounting: Standard 2 x 4 inch junction box or 60 mm diameter junction box
• Dimensions: 4 13/16 inches high x 3 inches wide x 7/8 inches deep
• Operating Temperature Range: 45 F to 99 F
• Operating Humidity Range: 5 to 95% RH, non-condensing
• Sensor Type: 20 K Ohm NTC non-linear
• Setpoint Temperature Range: 55 F to 85 F
• Shipping Temperature Range: -40 F to +150 F