Features: 1. Intelligent voice broadcast: visitor reminder, body temperature broadcast. 2.0.1 second infrared temperature measurement: faster, smarter and more accurate. 3. High temperature alarm prompt: abnormal flashing red alarm sound warning. 4. High quality, durable and reusable. 5. Satisfaction: If you have any other questions, please feel free to contact us. Note: Due to monitor effect and light, the actual color may be slightly different from the picture. Please allow 1-3 cm deviation due to manual measurement. Instructions: 1. Screen display numbers 2. Accuracy 0.2 degrees 3. Response time 5 seconds 4. Exceptionally automatic Alarm 5. Measuring distance 5cm~10cm 6. Power supply? AA battery or DC5V 1A or DC12V 0.5A PCS 7. Ambient temperature 0C-42. 8. Weight 171g (excluding battery) 9. Dimensions 124 x 86 x 38 mm 10. Standby for about one month 11. Installation ok/double-sided tape/bracket fixation includes: 1 x infrared thermometer