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Honeywell Remote Sensor: Temp, Indoor, Honeywell, Junction Box, Hardwired - Temperature Sensors
HoneywellTemperature Sensors

Honeywell Remote Sensor: Temp, Indoor, Honeywell, Junction Box, Hardwired

The Honeywell TR21/U is a temperature sensor designed for indoor use, featuring a junction box mounting type and hardwired electrical connection. It includes a subbase and is compatible with Honeywell systems, with a…

SKU 3G-OTH-70666

Brand
Honeywell
Item
Remote Sensor: Temp, Indoor, Honeywell, Junction Box, Hardwired
Category
Temperature Sensors
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Technical Specifications

Honeywell
Manufacturer Part Number
TR21/U
Type
Indoor, Honeywell, Junction Box, Hardwired, 45° to 99°F
Includes
Subbase
Application
Temperature
Mounting Type
Junction Box
Indoor/Outdoor
Indoor
Temperature Range
45° to 99°F
Electrical Connection Type
Hardwired
Compatible Brand and Series
Honeywell
View Full Spec Sheet

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Honeywell Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The Honeywell TR21/U is a temperature sensor designed for indoor use, featuring a junction box mounting type and hardwired electrical connection. It includes a subbase and is compatible with Honeywell systems, with a temperature range of 45° to 99°F.

Used in

Common applications for Honeywell
Commercial kitchen and inflight-catering steam boilers — RM7890 / RM7895 flame relays with UV detection
Food-processing ramp-and-dwell ovens — DBC2000E / DBC2100E controllers
Hotel and hospital boiler plants — VR8205 combination gas controls
Petrochemical tank-farm heating — V4xxx gas-valve bodies with ML7420 actuators
Retrofit swap-outs from legacy Fireye / Satronic — Honeywell replacement kits

Honeywell Products

3G Electric supplies Honeywell temperature sensors. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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