Unused CONTEC alcohol tester KE-302 (White) ■ Main Features ・ Checks breath alcohol concentration simply by blowing into it. ・ Comes with a strap for convenient carrying. ・ Measurement Range: 0.00 to 0.50 mg/L, in 0.05 mg/L increments (displays 0.00 mg/L for values less than 0.05 mg/L) Power Supply: 2 x AAA alkaline batteries Detection Method: Semiconductor gas sensor Measurement Target: Breath alcohol concentration Shipping will use recycled materials and will be in simple packaging, considering waterproofing and damage prevention.