Features: There are 3 different types, 12V/24V/110V, choosing based on your needs. Power supply :110-220VAC 10%, 50/60Hz(or DC12V / DC24V). Can control both heating and cooling output. Output contact capacity of relay: heating: 10A/240VAC, refrigeration: 10A/240VCA. When temperature exceeds the limit or when sensor error it will alarm. It can be used for peltier water cooling device. Specifications: Material: ABS Size: 85x75x70x34.5x27mm/3.35x2.95x2.76x1.36x1.06in Power supply :110-220VAC 10%, 50/60Hz (or DC12V/DC24V) Temperature measurement and control range: -50 ~ +110 Resolution :0.1 Accuracy: 1 Relay output contact capacity: heating: 10A/240VAC, refrigeration: 10A/240VCA Sensor H type: NTC sensor, line length 1 meters Note: Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x Digital Temperature Controller