Model CO52 Introduction Congratulations on your purchase of the Extech C052 Gas Leak Detector. The CO52 detects the presence of gas and displays concentrations between 0 and 10000 parts per million (ppm). Careful use of this meter will provide years of reliable service.
Batteries 2 AA size batteries are used. The battery compartment is located at the rear of the CO52. Fit the batteries in accordance with the diagram found within the molding. Remaining battery life is indicated by the symbol in the digital display. If the batteries are fresh, 5 segments will be displayed.
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