1. Install the batteries of the host or plug in the USB data cable. At this time, the signal icons of sensor 1 and sensor 2 are flashing, indicating that the host is receiving external signals.

2. Install the battery of sensor 1. After powering on, you can see that the indicator light of sensor 1 flashes first, and then flashes red again after 5 seconds, indicating that the sensor has transmitted a signal. The temperature of sensor 1 will be displayed immediately after the sensor 1 channel of the host receives the signal.

3. Install the battery of sensor 2. After powering on, the host can immediately display the number of sensor 2 (same as sensor 1).

Note: If the host does not immediately display the temperature of the sensor, you can repeat the above operation.

Indoor temperature measuring range: 14?~140?(-10C~60?)

Indoor Temperature update frequency: 10S

If the indoor temperature value is < 14?(-10?), it will display -L-

If the indoor temperature value is > 140? (60'C), it willdisplay -H-

Outdoor temperature measuring range: -40?~140?(-40?~60?)

If the outdoor temperature value is < -40? (-40?), the temperature on the corresponding channel will display -L-

If the outdoor temperature value is > 140? (60?), the corresponding temperature on the channels willdisplay -H-

• When the SENSOR1/SENSOR2 temperature alarm is activated and the temperature value exceeds the set range,the alarm will sound and remind after 1 minute.
• When the temperature alarm sounds, except for pressing the SENSON1 or SENSON2 button to stop the alarm, other buttons willnot stop the alarm,the alarm symbol will continue to flash at 1HZ.
• After starting the alarm, it will beep BiBl twice per second. lf without any operation to stop the alarm, the alarm will continue to loop until the button stops or the current temperature is outside the alarm temperature range.