The programmable thermostat from Carrier is an easy-to-use device that allows HVAC service technicians to control and customize the temperature settings of their clients' heating and cooling systems. With its user-friendly interface, the device can be programmed to adjust the temperature based on time of day or specific preferences. The thermostat also features a large, backlit display for easy reading and a battery backup to ensure uninterrupted operation in case of power outages. Additionally, it is compatible with a wide range of Carrier HVAC systems, making it a versatile choice for any installation.