Connex smart thermostat, wall mount, connect non-wifi heaters to connex heaters, touch controls, precise temperature control, economy mode lowers temperature to pre-set level when room is empty, backlit display in both fahrenheit & celsius, displays relative humidity, lowers energy costs approximately 10%, works with new & old heaters, convection or fan forced, easy installation, 240v, 4000w, measures 4-5/8" x 1-1/2" x 5-1/8", 3 year warranty.