Unused CONTEC alcohol checker KE-302 (white). ■ Main Features ・You can check the alcohol concentration in your breath just by blowing into it. ・Comes with a strap for convenient carrying. ・Measurement range: 0.00～0.50mg/L, in 0.05mg/L increments (displays 0.00mg/L for less than 0.05mg/L) Power supply: 2 x AAA alkaline batteries Detection method: Semiconductor gas sensor Measurement target: Alcohol concentration in exhaled breath Instant purchase welcome. We will ship using recycled materials with simple packaging to consider waterproofing and damage. Please note that it may be shipped via Rakuraku Mercari Delivery depending on the situation. #alcoholchecker #drinking #alcoholtester #legalcompliance #checkpoint #portable Item No. k3300806