2.4-inch LCD screen, high brush imaging without delay; High/low temperature points, automatic recognition and capture; USB link fast transfer, archive analysis more convenient Sensor type : Vanadium oxide() microcalorimeter; Response Band : 8-14pm; Thermal image resolution : 240x240 Pixels; Noise equivalent temperature difference(NETD) : ≤60 (@25°C,F#1.0); Angle of view(FOV) : 50.0°(H)x50°(V)/72.1°(D); Spatial resolution(IFOV) : 8.89 mrad Frame rate : 25Hz; The length of the imaging lens : 1.35 mm; Temperature measuring length : 0.3meter-3meter Adjustable; Temperature range : -20°C~550℃; Accuracy of temperature measurement : ± 2C or±2% of the reading (take the larger value of the reading); Unit of temperature measurement : Celsius, Fahrenheit, Kelvin; Temperature resolution : 0.1℃; Emissivity : 0.01-1.00 Adjustable Temperature measurement shows : Center point temperature measurement, high and low temperature tracking Display screen : 2.4 inches TFT LCD Display resolution : 320x240 Key : Power Key, up key, Down Key, Return key, Trigger key : Yes Temperature Alarm : Screen font color alarm Image storage : Built-in memory card Number of image files : 30000 Image format : BMP Shock/vibration : GB/T 2423.5-2019;GB/T2423.10-2008 Electromagnetic compatibility(EMC) : GB/T17799.2,GB17799.3-2012 Protection level : IP54 Installation mode : Tripod mount UNC-20 Focus mode : Auto focusing Hardware interface : Type-C USB Battery type : Rechargeable lithium battery(3.7V/2500mAh) The working hours of the battery : 7h@25°C Charging time : Less than 3h@25°C Charging voltage/current : 5V/2A Boot speed : ~8 seconds Automatic shutdown : Diable (default)(optional 10 Min, 20 Min, 30 Min,40 Min, 50 Min, 60 Min, Disable) Opera temperature : -10°C-50℃ Storage temperature : -40°C~70°C Working humidity : ≤85%RH(Non-condensing) Colour:Red Material:plastic Package Contents: 1 x Handheld Infrared Thermal Imager 1 x USB Cable 1 x English instruction manual Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.