MR BLACK 03 Alcohol Tester alcohol testing instrument The Stopwatch XL-009 With Compass

The Stopwatch XL-009 With Compass 1/100 sec is a versatile and reliable timekeeping device equipped with a built-in compass

Whether you need a personal alcohol test or require more professional-grade testing

The bottle infuses dissolved free molecules of Hydrogen

Specification Details Measurement Range (SpO2) 70%-100% Measurement Range (Pulse Rate) 30-250 bpm Accuracy (SpO2) ±2% (70%-100%) Accuracy (Pulse Rate) ±2 bpm Display OLED Digital Display Power Source 2 x AAA Batteries Operating Temperature 5°C - 40°C

Specifications of Microcontroller based TableTop ph Meter:

MR BLACK 03 Alcohol Tester alcohol testing instrument The Stopwatch XL-009 With CompassThe MR BLACK 03 Alcohol Tester is a high performance, portable breath alcohol tester designed for both professional and personal use. Built with a high performance 32 bit embedded processor and a reliable imported electrochemical fuel cell sensor, it delivers fast, accurate, and stable alcohol concentration measurements. With its compact gas circuit design, high precision sampling system, and advanced algorithm, the Mr Black 03 ensures professional