Breathalyzer

personal, semi-conductor gauge, the display, power supply: batteries

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special, electrochemical gauge, the display, up to 4 ppm, a food: batteries

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personal, electrochemical gauge, the display, up to 4 ppm, a food: batteries

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professional, electrochemical sensor, up to 4 ppm, a food: batteries

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professional, electrochemical gauge, the display, up to 4 ppm, an accuracy of 10%, power supply: batteries

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professional, electrochemical gauge, the display, up to 4 ppm, up to 0.95 mg/l, power supply: batteries

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personal, semiconductor sensor, up to 2.5 ppm power supply: batteries

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personal, semi-conductor gauge, the display, up to 1.9 ppm to 0.19 for YOU, power supply: batteries

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personal, electrochemical gauge, the display, up to 5 ppm, up to 2.5 mg/l to 0.5 YOU, power supply: batteries

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personal, electrochemical gauge, the display, up to 5 ppm, up to 2.5 mg/l, power supply: batteries

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