Model Number: A3700 Brand Name: HaiLin Key Specifications/Special Features: The A3700 series thermostats are luxurious appearance with large LCD display screenThe thermostat are designed to operate with most gas, oil, electric boiler or 2-wire hot water heating and air conditioning systems that have 24-volt or millivolt controlFeatures:Latching relays for system compatibilitySelectable applications satisfy personal demandAC 24V with battery backup brings more safety, hidden batteries Installation gives a clear and smooth appearanceHigh reliable standalone microprocessor increases anti-jamming ability5+2 or 7 days 4 periods programmableLow battery indicator (optional)Adjustable cycle rate12/24 hours clock
Large, easy-to-read LCD display with green backlight
Easy, front load battery access
Armchair programming allows you to remove the thermostat from the wall for programming
Soft touch keypad
Filter change indicator
°F/°C selector