Combustible Gas Detector Alarm Digital Combustible Gas Detection Instrument Gas

1 Gas Detector. Alarm Mode Alarm Linkage Output: DC5V. WI-FI/BT Standard: 802.11b/g/n, (channel 1-14), support BT 4.2 low energy. 1 Manual (English). 1 Type-C Cable. Ordinary version: Sound (Buzzer).

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