● Accurate and excellent long-term life cycle
● Measuring up to 10000 PPM
● Voltage or current output and optional RS-485, and display
● Free software configuration

sensor type 
NDIR sensor
CO2 measuring range
0 ... 10000 PPM
signal connection
3-wire
load resistance
voltage output:≧10KΩ 
current output:< 250 Ω
response time
GS43: < 2 min. ; GS44 : < 6 min.
power supply
DC 12 ... 36 V & AC 24 V ± 10 %
protection degree
GS43 : IP54 ;GS44 : IP64