Basic functions:

Temperature and humidity display (optional indoor/outdoor temperature mode)

High and low temperature automatic alarm (the default high temperature 28 ℃, low temperature 18 ℃)

Can set arbitrary high temperature, low temperature alarm

℃ / ℉ temperature switch display

LED lights indicate alarm

Temperature measurement range:

   Indoor temperature mode: - 10 ℃ to 50 ℃ (+ 14 ℉ ~ + 122 ℉)

   Outdoor temperature mode: - 40 ℃ ~ 70 ℃ (158 ℉) - 40 ℉ ~ +

Humidity measurement range: 20% RH ~ 95% RH

Body size: 78 x 62 x 18mm

Use battery: 1.5V(AG13) * 1

The Features:

* temperature & amp; Humidity display (alternative indoor/outdoor temperature mode)                 

* highest/lowest temperature alarm function (default setting: highest 28 ℃; Lowest: 18 ℃)

* Setting the random temperature range

* temperature unit ℃ / ℉ changeable

* LED alarm indicator light

Temperature Range:

     Indoor mode: - 10 ℃ to 50 ℃ (+ 14 ℉ ~ + 122 ℉)

     Is suing mode: - 40 ℃ ~ 70 ℃ (158 ℉) - 40 ℉ ~ +

Humidity: 20% RH ~ 95% RH

The Product Dimension: 78 * 62 * 18 mm

Power supply: 1.5 V (AG13) x 1

The basic function
Temperature and humidity display (optional indoor/outdoor temperature mode)
High and low temperature automatic alarm function (the default high temperature 28 ℃, low temperature 18 ℃)
Can set arbitrary high temperature, low temperature alarm range
℃ / ℉ temperature switch display
LED lights indicate alarm
 Operation method
1.    Push back the battery cover according to the direction of the machine, then install the battery and battery cover, which can be used.
2.    Key function:
SET maximum and minimum temperature alarm range;
[+] increase the number of items being set;
[-] reduce the numerical value of the target;
℃ / ℉ switch unit to ℃ temperature (c) or ℉ (Fahrenheit) display;
[IN/OUT] toggle the switch, switch the indoor/outdoor temperature display.
3.    In initial condition, hold the [SET] 2 seconds \"SET Hi. High temperature Settings\" location temperature value (the highest temperature alarm value) began flashing, press [+] / [-] increase/decrease the highest temperature value, long press to speed up the value adjustment; At the same time, the temperature value of the position of \"SET Lo. Low temperature setting\" starts to flash, pressing [+] / [-] to increase/decrease the minimum temperature value, and the long press to accelerate the numerical adjustment. Finally, press the [SET] key to confirm the Settings.
4.    When the [IN/OUT] switch to \"IN\" position, the indoor temperature is displayed, and the temperature alarm range on the screen is the indoor temperature alarm range; On the other hand, when the \"IN/OUT\" switch is switched to \"OUT\", the outdoor temperature is displayed, and the temperature alarm range on the screen is the outdoor temperature alarm range.
5.    When switching between indoor/outdoor temperatures, the temperature of the screen will switch to the corresponding temperature in 10 seconds.
6.    When actual temperature exceeds the SET alarm temperature range (temperature higher than the \"SET Hi.\" position, or lower than the temperature of the \"SET Lo.\" position) LED light as alarm flashing 10 seconds for the first time, at the same time, \"the SET Hi.\" or \"SET Lo.\" the temperature of the position will always flashing, press any key to stop the alarm and LED lights flashing, over temperature alarm if the actual temperature range, the LED light as alarm flickering once every hour.