3. Front Panel and Bottom Description
1-Particle Sensor
2-LCD Display
3-Page up and Setup button
4-Page down and ESC button
5-Power ON/OFF button
6-Measure and Enter button
7-Memory View button
8-USB charge interface
9-Air-bleed hole
10-Bracket fixing hole
3
5
6
8
1
2
4
7
9
10