Jdy-338 gas detector Induced gascoal gas\natural gas\lpg Power input household power supply ac 220v /50hz or dc 12v Working environment temp. -10¬ ~+40¬++ relative humidity _90%rh Buzzer level:70db/m Alarm density15%lel Resume density8%lel Stabilitylong-time working alarm density error_+ 5 % Repetitiveness repetition test alarm density error_+5% Alarm density error _5%lel Alarm mode flash sound alarm, shut-off gas valve/network alarm signal Power consumption_5w 11.9 x 6.8 x 4.6cm 0.32kg
