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Breathalyzer, Professional Fuel Cell Sensor Breath Alcohol Tester High-Accuracy USB Rechargeable Digital Police Breathalyzer Professional Use with 10 Mouthpieces… : Health & Household

Breathalyzer, Professional Fuel Cell Sensor Breath Alcohol Tester High-Accuracy USB Rechargeable Digital Police Breathalyzer Professional Use with 10 Mouthpieces… : Health & Household

【SMART & FAST RESULT】: ✔The breathalyzer uses police-grade fuel cell sensor technology. can real-time response and resume, minimize the mistakes;

Breathalyzer, Professional Fuel Cell Sensor Breath Alcohol Tester High-Accuracy USB Rechargeable Digital Police Breathalyzer Professional Use with 10

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Breathalyzer, Professional Fuel Cell Sensor Breath Alcohol Tester High-Accuracy USB Rechargeable Digital Police Breathalyzer Professional Use with 10 Mouthpieces… : Health & Household

HI-TECH MEDICAL AL-DAT-AFE Testeur d'alcool

ACT2600 Portable Breathalyzer Device Alcohol Test by BELLADDY INC – Fuel Cell Sensor, LCD Display, High Accuracy, Fast Response, 10 Mouthpieces : : Health & Personal Care

a) Working principle and components of fuel cell operated alcohol

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