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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CT87N1001 The Round Non-Programmable Manual Thermostat, Large, White

Product ID: 2196295

Details

Brand
Honeywell Home
Controller Type
Mechanical
Model Name
The Round
Product Dimensions
1.5"D x 3.25"W
Special Feature
Temperature

🎯±1°F precise temperature control

🔋Battery powered, mercury-free

🕰️Classic round dial design

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Description

🕰️ Keep it classic, keep it cool — analog comfort for the modern pro.

ECO FRIENDLY SAFE - Mercury-free design protects your home and the environment without compromising performance.
PLUG PLAY SIMPLICITY - Battery powered and easy to install with included hardware—perfect for busy professionals who value hassle-free living.
PRECISION YOU CAN TRUST - Maintain your perfect climate with ±1°F accuracy, ensuring consistent comfort all year round.
EFFORTLESS ANALOG CONTROL - Twist the large dial for instant, intuitive temperature setting—no apps, no fuss.
TIMELESS DESIGN MODERN RELIABILITY - Iconic round shape with a decorative ring hides wall imperfections for a sleek, clean look.

The Honeywell Home CT87N1001 is a non-programmable manual thermostat featuring a large, easy-to-read round dial for quick temperature adjustments. With ±1°F accuracy and a mercury-free, battery-powered design, it offers reliable, eco-conscious climate control. Its timeless aesthetic and simple installation make it a favorite in over 70 million homes, perfect for professionals seeking straightforward, dependable comfort without digital distractions.

Specifications

ASIN	B000FCCZ5Q
Additional Features	Temperature Display
Backlight	Yes
Best Sellers Rank	#39,337 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #20 in Home Nonprogrammable Thermostats
Brand Name	Honeywell Home
Color	White
Control Method	App
Control Type	Dial Control
Controller Type	Mechanical knob
Customer Reviews	4.4 4.4 out of 5 stars (1,663)
Display Type	Manual
Global Trade Identification Number	00085267263696
Included Components	CT87 thermostat, wall cover, large print subbase switch labels, wall anchors & screws (2 each), wire labels and installation guide
Item Dimensions D x W x H	1.5"D x 3.25"W x 3.25"H
Item Type Name	Non-Programmable Manual Thermostat
Item Weight	2.4 ounces
Manufacturer	Honeywell Home
Manufacturer Part Number	CT87N1001
Manufacturer Warranty Description	Warranty.
Material Type	Plastic
Model Name	The Round
Model Number	CT87N1001/N
Mounting Type	Wall Mount
Power Source	Battery Powered
Product Style	Thermostat
Shape	Round
Smart Home Compatibility	Not Smart Home Compatible
Specific Uses For Product	Furnace
Temperature Control Type	Heating and Cooling
UPC	085267263696
Unit Count	1.0 Count
Voltage	120 Volts

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