Feature: 1. HEAT & COOL MODES: Control temperature by setting the temperature set point and differential value. 2. MULTI-PROTECTION: Temperature calibration function checks and adjusts accuracy by comparison with standard values; includes automatic delay cooling system and automatic overtemperature alarm. 3. PRECISION CONTROL: Scientific design for optimal performance; anti-breakdown capacitor ensures safe electrical circuit operation. 4. WIDE APPLICATIONS: Suitable for use with refrigerators, coffee makers, aquariums, water tanks, kilns, furnaces, greenhouses, incubators, and more. 5. DUAL DISPLAY: Clear and accurate readings with no illegible characters. Specifications: Material: ABS (Flame-Retardant) Power Supply: 110–220VAC ±10%, 50/60Hz; DC 12V, DC 24V (Optional) Power Consumption: <3W Temperature Measurement Range: -50°C to +110°C Resolution: 0.1°C Accuracy: ±1°C (-50°C to +70°C) Relay Output Contact Capacity: Heat: 10A/240VAC; Cool: 10A/240VAC Sensor Type: Imported NTC sensor Sensor Cable Length: 1 meter (including probe) Item Size: 8.5 x 7.5 x 3.5cm Package Size: 10.5 x 8.2 x 5.4cm Item Weight: 105g Package Weight: 129g Package List: 1 x Temperature Controller 2 x Sensor Probe