Able to detect O2、CO2 continuously. Detector : 28 ( W ) ×27 ( D ) ×170 ( H ) mm. Acoustooptic alarm when battery exhausted. 2 : solid electrolyte sensor. Monitor : 76 ( W ) ×27 ( D ) ×145 ( H ) mm. 3 dry cell 4/AC100V (using a dedicated AC adapter).
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