The infrared radiation thermometer SK-8700I is a high-precision device that can quickly measure temperatures from -50°C to 550°C. It has been used a few times. Operation confirmed. - Model: SK-8700I - Type: Infrared radiation thermometer - Measurement range: -50°C to 550°C - Accuracy: ±1.5°C - Response time: 500ms - Power supply: 9V battery (sold separately) Thank you for looking.