2.8in LCD Digital Thermal Imager with Battery Multifunctional Thermal Camera Temperature Detection Tool Item Type: Thermal Imager Material: PCB Battery: 3.7V lithium battery 800mAh (built in battery) Purpose: High accuracy non contact temperature measurement; Security and intrusion detection temperature; Body temperature detection temperature; Intelligent building environment temperature measurement; Automobile air conditioning control; Microwave oven and oven temperature detection and control; Temperature monitoring of industrial parts; Visual temperature sensor; Side leakage and maintenance of floor heating equipment; Thermal detection of circuit boards and components Basic Parameters: Infrared Sensor: MLX90640ESF BAB Hardware Resolution: 32 x 24 pixel far infrared array Screen Resolution: 320 x 240 pixels Temperature Measurement Range: -40-300℃, Measurement Accuracy: ±2℃, Operating Temperature: 0 to 50℃, Working Humidity: ≤ 70% Refresh Rate: 8Hz Field of Vision: Horizontal 55° x vertical 35° Emissivity: 0.95