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The Honeywell TR21-H is a robust temperature and humidity sensor, ideal for precise monitoring in various industrial and HVAC applications. This wall-mounted unit ensures reliable performance with its 20K Ohm NTC non-linear thermistor.
Equipped with a highly sensitive thermistor, the Honeywell TR21-H excels in providing detailed environmental data, essential for maintaining optimal conditions in manufacturing processes and data centers.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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