of a person regardless of room temperature.
Depending on various skin types and thickness, there may be temperature difference. When the indoor temperature is significantly different, the body infrared thermometer should be placed in that room for 15-20 minutes before using.

Functions Description:
F1: when the body temperature exceeds alarm temperature(default value is 38°C), will display red backlight and alarm;
F2: calibration(default 0), you can set when there is a temperature deviation;
F3: alarm switch(ON-OFF), when turn on the alarm, the screen will appear loudspeaker icon;
F4: modes selection(default BODY), the screen will display "Body temp" under BODY mode.

Backlight Color Description(ONLY BODY MODE):
<32°C: red backlight: appear "LO" symbol;
32-37.3°C: green backlight: body temperature is normal;
37.3-F1: yellow backlight: body temperature is high but not exceed the alarm temperature;
>F1: red backlight: body temperature exceeds F1 and alarms.

Specifications:
Color: Blue
Material: ABS Plastic
Display Resolution: 0.1°C(0.1°F)
Body Temperature Measurement: 32.0-43°C / 90-109.4°F
Ambient Temperature Measurement: 0-60°C / 32-140°F
Accuracy: (+/-)0.2°C(0.6°C error is allowed due to the infrared test and environment effect)
Measurement Distance: 1 to 5cm
Auto-shutdown Time: About 7s
Power Supply: 2 * 1.5V AAA Batteries(NOT Included)
Operating Temperature: 10-40°C / 50-104°F
Storage Temperature: 0-50°C / 32-122°F
Relative Humidity: ≤85%
Item Size: 95 * 42.5 * 156mm / 3.74 * 1.67 * 6.14in (L * W * H)
Item Weight: 110g / 3.9oz
Package Size: 20 * 11 * 4.8cm / 7.87 * 4.33 * 1.89in (L * W * H)
Package Weight: 201-220g / 7.12-7.74oz

Package List:
1 * Non-contact IR Thermometer
1 * User Manual (English)