About This 【Thermostat Applications】for with Conventional Single-Stage Systems Forced-Air (Gas, Oil, Electric) & Ventilation & Air Conditioning, up to 1 Heat and 1 Cool. [ Does not work 120-240V line voltage systems ] 【Clearly Incompatible Systems】Does not work multi-stage systems (2H/2C, 3H/2C) and heat pumps systems(2H/1C, 4H/2C); PTAC units; 3-wire hydronic (hot water) heating; dual fuel/hybrid heating; [ Does not work 120-240V line voltage systems ]; mini-split heat pump air conditioners; RV air conditioners (Mach/Roughneck series) 【Critical for Renovations】– Before ordering, confirm your HVAC system is a 1H/1C single-stage setup (non-heat pump). Review all wiring diagrams and installation guidelines. Purchase only if your system meets all requirements to avoid compatibility issues. 【Dual Power Supply, No C-Wire Needed】Supports 24VAC hardwiring or 2 AAA batteries power supply; No common wire (C-wire) required for most standard systems, making retrofits in older homes more convenient 【Clear & Easy-to-Read Design】Equipped with a large white backlit display with clear, prominent numbers, especially suitable for the elderly to view; Room temperature display range: 41°F to 95°F, Temperature control range: 44°F to 90°F 【Precise Temperature Control & Protection】±1°F temperature control accuracy ensures a comfortable experience, supporting 0.2°F to 2°F heat/cool swing adjustment; 5-minute compressor delay protection (selectable ON/OFF) with low battery indicator function 【Reliable After-Sales Guarantee】Enjoy a 2-year worry-free warranty, and 24/7 professional customer service team is ready to provide support for installation, wiring, and troubleshooting at any time. Overview Brand : Heagstat Model Name : Non-Programmable Thermostat Product Dimensions : 0.98"D x 4.72"W x 3.86"H Controller Type : Push Button Special Feature : Separate Heating and Cooling Swing (Cycle Rate), Compressor Delay Protection
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