Carbon Monoxide Sensor TGS 203

Specifications:
1) range：50-1,000ppm
2) Change Ratio of Sensor Resistance >1.0
3) Circuit Voltage：24V(AC/DC)
4) Heater Voltage：high 0.8V±0.08V(60s)(AC/DC) ;
low 0.25V±0.025V(90s)(AC/DC)
5) Load Resistance: 4KW ± 1%