
BST-HYG3 Operation Manual
DIGITAL THERMO-HYGRO METER
1. Specification:
Temperature Range: indoor -10℃~+50℃(+14℉~+122℉)
outdoor -50℃~+90℃(-58℉~+194℉)
Indoor Humidity Range: 20%RH~90%RH
(When the humidity < 20%RH, display 10%RH directly.)
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; switch ON/OFF temperature alert function
[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 ( appears when the alert function is
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 ( appears when the alert function is
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 ,,and present
outdoor temperature value flash, during 15-second alert, press any button to stop alert
buzzer sound and flash.