Features: HT-02D is a thermal Imaging Camera which combines the functions of surface temperature measurement and real-time thermal imaging. The traditional thermal Imaging Camera shall measure each component one by one but this instrument does not need to. Therefore, it helps to save our customers' time. Even the potential problems can be clearly displayed on the color screen which helps customers quickly locate the central point to measure cursor and temperature. To improve recognition, this product is equipped with a vision camera. Based on practical requirements, it can turn thermal image into visional image. Thermal image and visional image can be stored in the dismountable memory card. Adjust the images and store them in PC which are used to generate report or for printing. HT-02D is easy to operate. After seconds it can be tested. This product is the optimum product for electrician and maintainer. It can quickly find out the problem area. Specifications: Display screen 2.4" full-angle high resolution color screen Resolution of infrared image 32*32(1024 pixels) Resolution of visible image 0.3 mega pixels Field angle/shortest focal distance 33*33/0.5m Thermal sensitivity 0.3°C Range of temperature measurement -20°C to +300°C Accuracy of temperature measurement ±2% or ±2°C (±2% o r ±4°F ) (The higher the measurement temperature, the slightly increased error) Emissivity Adjustable 0.1-1.0 Image capturing frequency 6Hz Range of wave length 8-11.5um Focal distance Fixed focal distance Color palette Iron red, rainbow, rainbow high contrast, gray scale (black glow) and gray scale (white glow) Vision option 25% step infrared to visional to infrared and visional image Memory card Small memory card 8GB File format bmp Power supply AA battery x 4 (NOT included ) Battery life 6 hours Auto power-off time 12 minutes Authentication CE (EN61326-1:2006) Operating temperature -5°C to 40°C Storage temperature -20°C to 50°C Relative humidity 10% RH to 80% RH Size Approx. 21.5 x 6 x 9cm/8.5 x 2.4 x 3.5in Package Includes: 1 x Thermal Imaging Camera (batteries are NOT included ) 1 x Bag Note: Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering. .