We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
White rectangular touchscreen thermostat on wall mount

Venstar

Venstar T7900 Colortouch Thermostat with WiFi and Humidity Control

SKU CH-BKJ1-BNM4K

A programmable heating and cooling thermostat with built-in Wi-Fi, humidity control, and up to four heat and two cool stages for gas-electric or heat-pump systems

  • TypeProgrammable Thermostats
  • WiFiYes
  • Thermostat TypeHeating and Cooling
  • Built-in Wi-Fi enables free smartphone and computer control
  • Controls humidification and dehumidification for balanced indoor air
  • Supports up to four heat and two cool stages
  • Dual-fuel capable with gas-electric or heat-pump systems
  • Switchable between programmable and non-programmable operation

Venstar T7900 Colortouch Thermostat

The Venstar T7900 is a programmable heating and cooling thermostat with built-in WiFi and humidity control. It manages up to four heat stages and two cool stages for gas, electric, heat pump or dual fuel systems. The touchscreen interface switches between programmable and non-programmable operation. A common wire is required for power.

Thermals noise and power draw

The thermostat draws operating power through the HVAC system common wire rather than batteries. Normal use produces no audible fan noise because the unit has no moving parts. Heat output from the display is minimal and does not affect room temperature readings. Power consumption remains constant during WiFi communication.

WiFi and picture frame features

Built-in WiFi connects the thermostat to a home network for free remote control from a smartphone or computer. The colour touchscreen doubles as a digital picture frame that displays custom images uploaded by the user. These features replace the separate T5900 and ACC0454 accessories previously needed for connectivity and humidity management.

Highlights

  • Built-in Wi-Fi enables free smartphone and computer control
  • Controls humidification and dehumidification for balanced indoor air
  • Supports up to four heat and two cool stages
  • Dual-fuel capable with gas-electric or heat-pump systems
  • Switchable between programmable and non-programmable operation

Specifications

BrandVenstar
TypeProgrammable Thermostats
WiFiYes
Thermostat TypeHeating and Cooling

Questions about this item

How do I install the Venstar T7900 and what step do people miss?

Wire the thermostat using a common wire to the C terminal so the unit powers on; the step often missed is confirming the C-wire is actually connected to the common side of the HVAC transformer before mounting.

What maintenance or replacement will the T7900 need later?

The thermostat itself has no user-serviceable parts; plan to replace the HVAC system air filter on schedule and, if the touchscreen becomes unresponsive after years of use, the entire unit would be replaced.

What limit shows up first under sustained use of the T7900?

The thermostat supports up to four heating stages and two cooling stages; a system demanding more stages than that would hit the staging limit first during heavy load.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.