Specifications: Model: TA600A Temperature measurement range -32 to 400 (-25.6 to 752*) Accuracy (geometric calibration at ambient temperature 21~250/70~77*): >0%: (1.5%+1.50) <0: 3C >32%: (1.5%+2.7*) <32*: 5 Response time: <500 ms (95% of reading) Spectral sensitivity: 8um to 14um Optical resolution: 10:1 (calculated at 90% energy) Emissivity: Fixed 0.95 Repeatability: 1% of reading or 1C Laser: wavelength 650nm, output power less than 5mW, level 3 laser display Display: four-digit display, maximum display 8888 Auto shut-off: 15 seconds Product size: 148 95x 39mm Display size: 23x 23mm Weight: approx. 103 g (without battery) Power supply: 2x1.5VAAA (RO3/LRO3) Operating temperature: 0C to 40C (32 to 104) Operating humidity: <90% relative humidity (non-condensing) Storage temperature: -20C to 60C (-49 to 140) Drop test: 1 m Observe: In strong electromagnetic fields, the use of this product will result in a measurement error of 10C or 20C; If you notice this change, leave the area and wait until you recover. Characteristics: Temperature measurement range Temperature measurement range: -32 to 550 C; Accuracy: (1.5% + 1.5C). Laser fixed point measurement When switched on, lightly press the middle button to turn on/off the laser light. Object distance ratio (D:S) The optical index of the infrared thermometer refers to the ratio of the distance D from the thermometer to the measured target and the effective area S of the measured target (D:S). As the distance (D) from the measured target increases, the light spot area of the area measured by the thermometer increases. Data retention After the measurement is completed, the temperature reading is retained for 15 seconds. After the screen turns off, you can gently press the shutter button to activate it. / switching Press the C button or button to switch between Celsius/Fahrenheit. HD large screen display The screen has a white backlight; Display size: 23x23mm. Power supply mode/auto power off Use 2x1.5V AAA (RO3/LRO3) AA batteries; Automatic shutdown after 15 seconds without operation. Scope of delivery: 1x color box 1xHost 1xcloth bag 1xUser manual