Besantek BST-HYG3 Operation Manual

1. Specification:

Temperature Range: indoor -10℃～+50℃（+14℉～+122℉）
outdoor -50℃～+90℃（-58℉～+194℉）
Indoor Humidity Range: 20%RH～90%RH
Power-supply: 1.5V (AAA size) x 1

2. Characteristics:

 simultaneous display of indoor temperature, outdoor temperature, indoor humidity
 alert for outdoor high temperature and low temperature
 changeable temperature unit:℃/℉
 Memorized MAX/MIN value of indoor and outdoor temperature displayed (flashing on LCD)
 Display of comfort degree
appears @ indoor Temperature: 18℃ ～25℃（64℉ ～77℉）& Indoor Humidity:
40%RH～65%RH
appears @ other indoor Temperature & Indoor Humidity

3. Operation:

3-1. Open battery compartment cover, take out the polarity insulator, put on the cover, then
the meter starts to work.
3-2. BUTTON function:
[OUT MAX/MIN] press to display memorized MAX and MIN values of outdoor temperature
[IN MAX/MIN] press to display memorized MAX and MIN values of indoor temperature
[ALERT] press to set or exchange alert of outdoor high temperature and low temperature
[UP/+] increase the value of what is under setting;
[DOWN/-] decrease the value of what is under setting
[℃/℉] change temperature unit between Celsius (℃) and Fahrenheit (℉)

3-3.Outdoor Temperature Alert setting:

Press ALERT button one time to enter outdoor high temperature () alert setting, press
[UP/+] button to switch ON/OFF alert function (
switched ON), press ALERT button for 2 seconds to enter high temperature alert value
setting, press [UP/+]/[DOWN/-] button to set high temperature alert value (max 90℃).
press ALERT button one time again to enter outdoor low temperature () alert setting,
press [UP/+] button to switch ON/OFF alert function (
switched ON), press ALERT button for 2 seconds to enter low temperature alert value
setting, press [UP/+]/[DOWN/-] button to set low temperature alert value (min -50℃).
Press ALERT button one time again to return to normal outdoor temperature display.
Note:
[1] When outdoor temperature surpasses the HIGH TEMPERATURE ALERT value, the ALERT
buzzer will sound for about 15 seconds, at the same time, the symbol
outdoor temperature value flash, during 15-second alert, press any button to stop alert
buzzer sound and flash.
BST-HYG3 Operation Manual
DIGITAL THERMO-HYGRO METER
（When the humidity < 20%RH, display 10%RH directly.）
switch ON/OFF temperature alert function
appears when the alert function is
appears when the alert function is
,，and present