PEN TYPE CARBON MONOXIDE METER? 7701
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■ POCKET TYPE , DIGITAL DISPLAYS
■ WARNING CARBON MONOXIDE LEVEL IS ADJUSTABLE
■ DUAL DISPLAY CO READING AND MAX. READING
■ BACKLIGHT FEATURES WORKING IN THE DARK
■ 3 POINTS (0/100/500ppm ) CO CALIBRATION
■ BATTERY LOW INDICATOR
■ A LONG LIFE ELECTROCHEMICAL SENSOR
■ PRESET AUDIBLE ALERT TRIGGERS ABOVE 25PPM INDICATING THRESHOLD OF DANGEROUS CO CONCENTRATION
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