bad breath checker

Model: 7502A
Origin: china
Details: 7502A Hamimi LED Bad Breath Detector/Checker
1、 FEATURES
1) The machine used HIG high-performance 8-bit microcontrollers (12 bit A / D) control, the MEMS sensor for the SM bad breath gas sensor (H2S);
2) With real-time clock (RTC), an alarm function;
3) Seven Color, One-button design, easy to operate;
4) Showing the value of a grade three color LED visual display, a low-voltage direct function;
5) Can automatically shut down manually shut down, real-time clock (RTC) can not be shutdown;
6) With buzzer voice prompts;
2、 TECHNICAL PARAMETERS
1) Showing the value: three-color LED display
2) Test range: one to three figures
3) Accuracy: ± 10%
4) Repetitive: ± 10%
5) Warm-up time: 10 seconds
6) Response time: ≤ 5 seconds
7) Recovery time: ≤ 15 seconds
8) the scope of alarm: ≥ 3 level bad breath, the buzzer alarm tips
9) Input power: DC 3V (CR2032 button batteries x1)
10) Products size: Φ48 × 9.5mm3