BSIDE X4A Portable Combustible Gas Detector Gas Leakage Alarm Tea while the outer simulated diamonds

while the outer simulated diamonds are clear 10mm wide

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including BS8433:2004

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BSIDE X4A Portable Combustible Gas Detector Gas Leakage Alarm Tea while the outer simulated diamonds1. Compact and convenient, can work at any time 2. Can detect multiple combustible gases to eliminate potential safety hazards 3. 3 color indicator design. Simple and easy to understand 4. Can carry out air wet temperature test, high precision sensing 5. Digital display design, replaceable battery, longer service life Parameters: 1. Detecting gas: hydrogen, carbon monoxide, methane, ethane, propane, butane, ethylene, propylene, butylene, acetylene,