01. Power Supply: DC9V batteries;
02. Sensitivity & Time: 30ppm, inactivation to alarms within 120minutes;
a. 50ppm, alarms within 60~90 minutes;
b. 100ppm, alarms within 10~40 minutes;
c. 300ppm, alarms within 3 minutes;
03. Standby Current: <50uA;
04. Alarm Current: <50mA;
05. Operation Ambient Condition: 5~40 centigrade 20~90%R. H.