Feature: 1. Easy and safe to operate, precise temperature control. 2. Alarm when temperature exceeds temperature limit or when sensor error. 3. Control temperature by setting the temperature setting value and the difference value, temperature calibration, refrigerating control output delay Protections. 4. Fine quality but inexpensive. Specification: Switch the modes between cool and heat: control temperature by setting the temperature setting value and the difference value, temperature calibration, refrigerating control output delay Protections. Alarm when temperature exceeds temperature limit or when sensor error. Features: Easy and safe to operate, precise temperature control. Alarm when temperature exceeds temperature limit or when sensor error. Control temperature by setting the temperature setting value and the difference value, temperature calibration, refrigerating control output delay Protections. Fine quality but inexpensive. Specifications: Temperature measuring range: -50℃ to 99℃ Resolution: 0.1℃ Accuracy: ±1℃ (-50℃ to 70℃) Sensor error delay: 1 minute Power supply: 110-220V AC, 12V DC, 24V DC (optional) Power consumption: <3W Sensor: NTC sensor (1PC) Relay contact capacity: 2 relay cool 10A/250V AC, heat 10A/250V AC Ambient temperature: 0℃ to 60℃ Storage temperature: -30℃ to 75℃ Relative humidity: 20% to 85% (No condensate) Sensor length: 1.0m Front panel size: 75 * 34.5mm / 3.0 * 1.4in Item size: 75 * 34.5 * 85mm / 3.0 * 1.4 * 3.3in Mounting size: 71 * 29mm / 2.8 * 1.1in Package size: 10 * 8 * 3cm / 3.9 * 3.1 * 1.2in Package weight: 105g / 3.7ounce Package list: 1 * Temperature Controller 1 * Temperature Sensor 1 * Instruction Manual Package List: 1 * Temperature Controller 1 * Temperature Sensor 1 * Instruction Manual