SENSI Low Voltage Thermostat: Heat and Cool, Auto, C/G/O/B/R/RC/RH/U1/U2/U3/W2/W/D/Y1/Y2
The SENSI Low Voltage Thermostat (SKU 902Z58, MPN SK20B) is a wireless thermostat for heat and cool applications. It features a touch screen, automatic changeover, and 7-day programming capability. The thermostat…
SKU 3G-OTH-70277
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Product Description
The SENSI Low Voltage Thermostat (SKU 902Z58, MPN SK20B) is a wireless thermostat for heat and cool applications. It features a touch screen, automatic changeover, and 7-day programming capability. The thermostat supports 4H/4C conventional or 3H/2C heat pump stages, with a temperature control range of 40 °F to 165 °F and includes humidification control.
Frequently Asked Questions
What is the SENSI Low Voltage Thermostat SK20B used for?
The SENSI Low Voltage Thermostat SK20B is used for residential and light commercial heating and cooling systems. It supports 4H/4C conventional or 3H/2C heat pump stages, automatic changeover, and 7-day programming for energy savings. It also includes humidification control.
What are the specifications of the SENSI SK20B thermostat?
The SENSI SK20B is a rectangular, touch-screen thermostat with a temperature control range of 40 °F to 165 °F. It supports 4H/4C conventional or 3H/2C heat pump stages, automatic changeover, and 7-day programming. Terminal designations include C, G, O, B, R, RC, RH, U1, U2, U3, W2, W, D, Y1, Y2.
Where to buy the SENSI SK20B thermostat worldwide?
3G Electric supplies the SENSI SK20B thermostat worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time.
How to install the SENSI Low Voltage Thermostat SK20B?
Install the SENSI SK20B by first turning off power to the HVAC system. Mount the thermostat horizontally on a wall, connect wires to terminals C, G, O, B, R, RC, RH, U1, U2, U3, W2, W, D, Y1, Y2 as needed, then restore power and follow the on-screen setup for 7-day programming.
SENSI Products
3G Electric supplies SENSI wireless thermostats. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.





