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 -40C to +300C, 8Hz dynamic refresh rate.Infrared sensor: MLX90640ESF-BAB;High-precision non-contact temperature measurement;Specifications:Material: epoxy Resin Board + printed circuit boardInfrared sensor: MLX90640ESF-BABBattery:3.7V 600mAh Li-batteryHardware resolution: 32x24 pixel far infrared arrayScreen resolution: 320x240 pixelsTemperature measurement ranges: -40C to 300CMeasurement accuracy: 2COperating temperature: 0 to 50CWorking humidity: 70%Refresh rate: 8HzField of View: 55Horizontal; 35VerticalEmissivity: 0.95Charging specification:Type-CUSB U-disk Capacity:16mbNote: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.Package includes:1xInfrared Thermal Imager