Product features ● Alarm output is possible when the set value is exceeded. ● No power supply required. ● Temperature setting can be changed with a dial. ● Can also be used as temperature control equipment for prefabricated refrigeration facilities and equipment. Product specifications Manufacturer: Saginomiya Seisakusho Temperature: 20 Maximum temperature (°C): [Temperature sensing part] 60 Model: BLS- Operating temperature conditions: TS・TB Mass (kg): 0.3 Ambient temperature (°C): -20 to 70 Contact type: C1 Adjustment range: Minimum: -20, Maximum: 20 (℃) Setting range: -20 to +20°C On-off temperature difference: Approx. 2°C The box is dirty, but the contents are unused. Please consider before buying, if you are particular about product condition.