Feature: 1. WIDE APPLICATION: This infrared thermometer is widely used for both everyday and industrial temperature measurement, such as cooking, home maintenance, HVAC diagnosis, soap making. 2. FAST AND EFFICIENT: The infrared temperature gun is designed for temperature measurement of non living objects, providing a high precise reading of up to ±5% within 2.0 seconds. Not suitable for human. 3. CONVENIENT FEATURES: Equipped with backlit LCD screen, the temperature gun allows for clear and easy to read data. Low battery indicator and 5s auto off function help extend the battery life. 4. ADJUSTABLE EMISSIVITY: You can adjust the emissivity (0.1‑1.0) according to different materials for accurate temperature measurement. 5. TEMPERATURE ALERT: The temperature gun indicator turns red when the test temperature exceeds the high or low limit settings, ensuring safety. Specification: Item Type: Infrared Thermometer Material: ABS Battery: 6F22 9V x 1 (battery not included) Model: TM500A Temperature: -30℃ to 500℃ (-22℉ to 932℉) Laser Point: Single point Geometric Correction: <400℃ Ambient Temperature 23℃+2℃: ≥0℃: ±1.5℃ or ±1.5% of reading, whichever is higher ≥ 32℉: ±3℉ or ±1.5% of reading, whichever is greater ≥-10℃ to <0℃: ±2℃ ≥14℉ to <32℉: +4℉ <-10℃: ±3℃ <14℉: ±6℉ Response Time: <500ms Working Temperature: 0℃ to 50℃, 32℉ to 122℉ Storage Temperature: -20℃ to 60℃, -4℉ to 140℉, without battery Working Humidity: 10% to 90% RH 30℃ (86℉) non condensing Working Altitude: 2000m Storage Altitude: 12000m Automatic Shutdown: About 5 seconds Sampling Rate: ≤0.5 seconds Backlit Function: Yes Low Battery Display: Yes Data Retention Function: Yes Maximum, Minimum, Average, Temperature Difference: Yes High and Low Temperature Alarm Function: Yes Zero Setting Function: Yes Maximum Display: Yes Power Consumption: ±50W. Package List: 1 x Infrared Thermometer1 x User Manual