How accurate is the temperature gauge?

We have found a 4 degree difference: if we set it at 74, it will cool to 70.

I'm looking for an HVAC thermostat. Wondering if this was one as I don't see the term "HVAC" anywhere on here. I have electric heat and central air.

This thermostat provides electronic control of 24VAC heating and cooling systems. You can see in the picture the switches for heat/cool and fan/auto. That's pretty much the definition of HVAC. It's a four-wire and if you see four on your old system to can be extra sure of no problems.

Can this thermometer be used for heat only via the wires are hooked in? Also, when the battery dies, does one just throw the thermostat away?

The are no batteries in mine, not sure why the description says that it requires batteries. It would be better to buy the less expensive heat-only Honeywell CT87K, URL: http://www.amazon.com/Honeywell-CT87K-RoundHeat-Manual-Thermostat/dp/B000EANORW/ref=pd_sim_sbs_hi_1

Can i use this on a 5th wheel hv 12v ac 110?

This model is not compatible with 12v applications. -Joey

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Description

🌡️ Classic comfort meets modern precision—stay cool, stay in control!

ECO CONSCIOUS CHOICE - Mercury-free design keeps your home safe and green.
PRECISION YOU CAN TRUST - Maintain your perfect climate with ±1°F accuracy every time.
SEAMLESS WALL INTEGRATION - Decorative ring hides wall imperfections for a sleek look.
BATTERY POWERED SIMPLICITY - No wiring headaches—easy install with reliable battery operation.
EFFORTLESS TEMPERATURE CONTROL - Twist the iconic dial for instant comfort—no apps, no fuss.

The Honeywell Home Non-Programmable Manual Thermostat (CT87N1001) features a timeless round dial design for intuitive temperature control with ±1°F accuracy. Mercury-free and battery-powered, it installs easily with included hardware and conceals wall marks with a decorative ring, making it a reliable, eco-friendly choice for hassle-free home climate management.

Specifications

Manufacturer	Honeywell Home
Part number	CT87N1001
Item Weight	68 g
Product Dimensions	8.26 x 3.81 x 8.26 cm; 68.04 g
Item model number	CT87N1001/N
Size	L
Colour	White
Style	Thermostat
Material	Plastic
Shape	Round
Power source type	Battery Powered
Voltage	120 Volts
Item Package Quantity	1
Display style	Manual
Plug profile	Wall Mount
Special Features	Programmable
Specific uses	Furnace
Included components	CT87 thermostat, wall cover, large print subbase switch labels, wall anchors & screws (2 each), wire labels and installation guide
Batteries included?	No
Batteries Required?	No

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