DZ505 Breath Alcohol Tester 

DZ505 is a new type alcohol tester we developed (hereunder as the device), the device adopts advanced flat surface semiconductor alcohol sensor, it has good sensitivity and repeatability, LED screen with backlight, simple and clear, and it is compact design, small size which is more convenient for your portable use and carry. When the test result is over the preset concentration Iimit, the device will give out audible alarm indication, to remind you for safety.
Website: www.hwsensor.c...