Monitor
Control panel keys
Analog signal input terminals
USB interface terminal
Connecting the USB
memory device
Power jack for the humidity sensor
Operation status LED
-POWER
-START
-CHARGE
Battery cover
Label
GND terminal
AC adapter jack
External input/output terminals
-LOGIC/PULSE
-EXT TRIG/SAMPLE
-ALARM
Power switch
GL220 Nomenclature
Top Panel
Bottom Panel
2
(Humidity sensor is the option B-530)
Logic alarm cable is required for connection
(Cable is the option B-513)
One battery pack can be installed
(Battery pack is the option B517)