Honeywell Inc. TR21J - Temperature sensor only with Network Jack.
The TR21 TR22 TR23 and TR24 are a family of direct wired wall modules for use with Honeywell Excel 600 500 100 and 80 controllers Excel 10 W7750 W7751A W7752 and W7753 controllers W7761 Controller and Spyder Unitary Controllers. All models have a space temperature sensor.
In stock
SKU
TR21-J
$31.86
20 K ohm NTC nonlinear Temperature Wall Module
| Manufacturer | Honeywell Inc. |
|---|---|
| Application | Networked Sensor |
| Description | 20 K ohm NTC nonlinear Temperature Wall Module |
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