Wrist Access Device with Door Lock Control Functions Features Door Lock Function Supports IC Cards Small Form Factor Set Custom Temperature Thresholds Screen Backgrounds Change Based on Temperature. Green within Threshold. Red Out of Threshold Alarm Function for Temperatures Out of range Supports Fahrenheit / Celsius Temperature Unit Switching Save the last 10k records with 16 GB SD Card Support Customizable Languages For use Indoors Only: 50° ~ 113°F Model INVID-TEMPWRIST Screen 4.3 inch resolution 800*480, full viewing angle Touch type Capacitive touch IC Card 13.5 MHz Non-contact IC card,14443A protocol Access Control Control type:5 wire feedback type electromagnetic door lock Power Consumption Normal display 2.0W Standby mode 1.0W Power Input Power 12V@1A Power supply cable Type C data cable Data export U Disk or SD card Temp Detection Distance 3-10cm Temp Accuracy ±.5°F (±0.2℃)(within 3-10cm) Alarm Temp Can be set from screen page Temp Compensation Support Temp Format Fahrenheit / Celsius Languages English default, Chinese, Traditional Chinese, French, Spanish, Italian, Russian Germany Product Size (L*W*H) 5.4 x 4.2 x 1 Inches (138mm*107mm*27mm) Installation method Wall-Mounted and Desktop