・Leak of the combustible gas can be checked.
・Alarm lamp easy to see from 3 directions.
・Sound pressure of alarm buzzer not less than 95 dB.

Sampling method Suction type
Principle of detection New Ceramic catalytic Method, Hot Wire Type Semi-Conductor Method, Thermal Conductivity Method, Potentiostatic Electrolysis Method, Membrane Type Galvanic Cell Method
Detection range 0 to 500 ppm (HC) / 0 to 2000 ppm (CH4)
0 to 100 %LEL (HC)/0 to 100 vol% (CH4)
0 to 500 ppm (0 to 150 ppm) (CO)
0 to 40 vol% (0 to 25 vol%) (O2)
Type of alarm Gas alarm / fault alarm
Display of alarm Blinking lamp / buzzer continuous modulated sound / gas concentration display blinking / vibration
Explosion protected construction Intrinsic safety
Explosion-proof class IECEx : Ex ia IIC/IIB T4 Ga
ATEX : Ⅱ1G Ex ia IIC/IIB T4 Ga
Ingress proof rating IP67
Approvals Japan Ex, ATEX, IECEx, Brazil Ex
CE marking EMC / ATEX / RoHS
Power source Dry battery unit (AA alkaline battery 3 pcs.)
Lithium-ion battery unit
Continuous operation Approx. 15 hours [dry battery unit]
Approx. 10 hours [Lithium-ion battery unit]
Dimensions Approx. 71 (W) × 173 (H) × 43 (D) mm (excluding projections)
Weight Approx. 360 g
Operating temperature range -20 ℃ to +50 ℃ (no sudden changes)
Operating humidity range 0 to 95 %RH (no condensation)
Target gas Methane, Carbon Monoxide, Isobutane, Oxygen
Target Gas

C4H10 (Isobutane), CH4 (Methane), CO (Carbon Monoxide), O2

Product Type