Feature:1. The thermometer can measure non contact over long distances to ensure your safety and can be used with confidence.2. Can easily switch between and units. Low battery indicator light and automatic shutdown function also ensure battery life.3. The product is made of high quality ABS material, has a large temperature measurement range, and the measurement results are accurate.4. The object distance ratio is 12:1, and the adjustable emissivity improves the measurement accuracy of different types. Easy to operate and easy to carry.5. This product is widely used in many situations, such as pool temperature, food temperature, floor temperature, car tire temperature, etc.Specification:Item Type: Infrared ThermometerModel: GM321Material: ABSBattery: 2 x 1.5V AAA (Battery Not Included)Application: Pool temperature measurement, food temperature measurement, car seat temperature measurement, wooden floor temperature measurement, automobile tire temperature test, refrigerator temperature test, water temperature measurementTemperature Range -50~400 (-58~752)Accuracy0~400 (32~752): 1.5 (2.7) or 1.5% -50~0 (-58~32): 3 (5)Resolution0.1C or 0.1FRepeatability1% of reading or 1Response Time500mSec, 95% responseResponse Wavelength8~14umEmissivity0.10~1.00 adjustable (default 0.95)Object Distance Ratio12:1Temperature Operating Range0~40 (32~104)Relative Humidity10%RH~95%RH non condensing, until 30 (86)Storage Temperature-20~60 (-4~140).Package List:1 x Infrared Thermometer (Battery Not Included)1 x ManualNote:1. When using this machine, please do not aim the laser at the eye trace, but indirectly shoot to the eye through the reflective appearance2. This instrument cannot measure through transparent surfaces, such as glass, plastic, etc., otherwise the value measured by this instrument will be the appearance temperature of the transparent object3.Steam, dust, smoke or other particles will form an obstacle to the instrument lens and affect the accuracy of the measurement4. In order to avoid damage to the thermometer or the equipment under test, please protect them from the following influences: EMF (Electric Phosphorus Field) generated by arc welding machines and induction heaters, thermal shock (due to large or sudden environmental temperature Change caused)5. Wait 30 minutes for the thermometer to arrive a stable state before use6. Do not put the thermometer close to or on hightemperature objects7. This model is an industrial thermometer, not suitable for human body