2 Heat 1 Cool Boiler Room Thermostat / 24V Programmable Thermostat

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2 Heat 1 Cool Digital Room Thermostat  24V With Blue Backlight 


1. Model S721
2. Heat Pump
3. 2 Heat, 1 Cool
4. Non progammable
5. This model features:

6. 4 sq. inch display
7. Blue backlight
8. Glow in the dark light button
9. Easy access battery compartment
10. Electric or Gas configurable
11. Separate B & O terminals
12. Separate heating and
14. cooling swing (cycle rate)
15. adjustments including
16. 2nd stage adjustments
17. Filter change indicator
     (selectable on or off)
18. Room temperature calibration adjustment
19. 5 minute compressor delay protection (selectable on or off)
20. Simple private label badge system
21. Easy wire color coded terminal blocks
22. Universal sub-base
23. Mounts on wall or junction box
24. Battery or 24v power



1. HVAC System

2. Building ventilation systems

3. Industry ventilation systems

4. Airport,train station,shopping mall, office, classroom and other public places for air quality indication 


5. Lab.wrehouse and other places to detect CO2+TEMP.+RH%

6. All other ventilation systems



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Mr. Coco Pan
Tel: 86-769-83501419
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Ocean Controls Limited
Unit C,9/F Winning House,No.72-74 Wing Lok Street, Dongguan, Guangdong, China (Mainland)
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