Features: 1.8inch JM-MLX90640-CSB Camera Infrared Thermal Imager Used in High-precision Non-contact; This is a hand held multifunctional thermal imager that can be used in many occasions; It can be used for home and industrial. Measurement ranges -40°C to +300°C, 8Hz dynamic refresh rate. Infrared sensor: MLX90640ESF-BAB; High-precision non-contact temperature measurement; Specifications: Material: epoxy Resin Board + printed circuit board Infrared sensor: MLX90640ESF-BAB Battery:3.7V 600mAh Li-battery Hardware resolution: 32x24 pixel far infrared array Screen resolution: 320x240 pixels Temperature measurement ranges: -40°C to 300°C Measurement accuracy: ±2°C Operating temperature: 0 to 50°C Working humidity: ≤70% Refresh rate: 8Hz Field of View: 55°Horizontal; 35°Vertical Emissivity: 0.95 Charging specification:Type-C USB U-disk Capacity:16mb Package Includes: 1xInfrared Thermal Imager note: Please allow 1-2cm errors due to manual measurement,please make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.