AprilAire Thermostats SKU AAS84NSU Please select AA 1H/1C 2H/1C CT SS UNIVERSALAA 1H/1C HEAT COOL CT SSAA 2H/2C 4H/2C CT MS UNIVERSALAA PR 2H/2C 4H/2C CT MS UNVSLAA PRW 2H/2C 4H/2C CT MS UNVSLAA INDOOR TEMPERATURE SENSORAA OUTDOOR TEMPERATURE SENSOR Log in to view price