This product is an easy-to-use, safe and reliable dual relay output digital temperature controller. It can be used as over-temperature protection and automatic temperature control system for various electric appliances such as equipment for home-brew, pet breeding, seedling heat mats, constant temperature cycle for heating pump, etc. Specifications: Plug: EU/ US (Optional) Color: Black Material: ABS Rated Current: 10A Temperature Control Range: -30~105/ -22~221 Temperature Probe: R25 #61;10K #43;1% B25/85 #61;3435K1% Temperature Accuracy: 1% Wireless Frequency: 2.4GHz APP Download: Compatible with SmartLife Support OS: Compatible with Android 4.4/ iOS 8.0 or above Package Size: Approx. 19 * 10 * 8cm / 7.48 * 3.94 * 3.15in Package Weight: Approx. 520g / 1.15lbs Package List: 1 * Wifi Temperature Controller 1 * User Manual (English)