Advanced planar alcohol sensor with sensor fault self-check function SMD assembly for stable performance Direct test process with LCD display Digital LCD display with blue backlight Portable and stylish design Audible alarm when limits are exceeded Power-saving design with low voltage indication Specifications: Model: AT6000 Detection range: 0.00 - 0.20% BAC; 0.00 - 2.00g/L; 0.00 - 2.00 BAC; 0.00 - 1.00mg/L; 0.00 - 200mg/100mL Alarm threshold: 0.05% BAC; 0.50g/L; 0.50 BAC; 50mg/100mL Test accuracy: 10% FS Working voltage: DC 5V, 3 x AAA batteries (not included) Working current: 120mA Ambient temperature: -10C to 50C Relative humidity: 95% Display: 3-digit LCD with blue backlight Battery life: 2000 tests Dimensions: 103 x 65 x 27mm (L x W x H) Package included: 1 x Alcohol Tester 4 x Mouthpieces 1 x English User Manual