It's perfect for various household, institutional industrial heating and cooling applications. Features: Versatile Use --- This temperature regulator measure temperature range from -40 to 90 , it can be a temperature measure and display tool and temperature controller with wide temp control range from -40 to 50 . High Performance --- This temperature thermostat with powerful function, cooling and heating mode convertible, automatic timed defrosting, manual, heating wire defrosting and temperature correction. Safe and Reliable --- This thermostat with compressor start up delay protection, over temperature and fault alarm. Using USA Microchip-PIC microcontroller, the program design is optimized, anti-interference ability is strong, stable and reliable. Durable and Compact Design --- Miniaturized design, SMT THT assembly, small size, light weight and versatility, easy for carry and space saving. Cover high quality ABS material shell, durable, high temperature resistant and can be used for a long time. Wide Application --- The temperature controller can be used for refrigeration industry for cold storage, refrigerated cabinets, ocean pools, etc., also used in other occasions where automatic temperature control is required. Specifications: Model: STC-8080A+ Material: PCB Board + ABS Plastic Shell Power supply voltage: 220VAC Power consumption: lt; 3W The temperature range: -40 ~50 Measurement accuracy: plusmn;1 Display resolution: 1 Sensor: NTC, sheath leads Compressor output contact capacity: 10A/240VAC Defrosting output contact capacity: 10A/240VAC Alarm output: buzzer +LED flickers Temperature correction range: plusmn; 5 Alarm range for temperature overrun: 0 ~20 The period of defrosting is adjustable for 0 hours and 99 hours. Defrost time: 0 minutes and 99 minutes Boot delay: 3 minutes Mounting size: 71*29mm/2.8*1.1in Item Size: 85*75*34mm/3.3*3.0*1.3in Item Weight: 188g/6.6oz Package Weight: 224g/7.9oz Package Size: 100*80*60mm/3.9*3.1*2.4in Package List: 1 * Temperature Controller 1 * Temperature Sensor