Teledyne API Ultrafine Particle Monitor - Model 651 APPENDIX A Firmware Commands
07506C DCN6727 A-3
READ Commands
Read Commands are used to display specific data values. The
values, associated parameters, responses returned by the Model
651, and examples are given on the following pages.

RAI – Read Analog Input Voltage

RAI reads the analog input voltage in V.
RAI
Command RAI
Response X X = analog input ZZAs (a floating point number
from 0.00 to 10.00)
Example
Command RAI Read Analog Input Voltage
Response 5.22 Vo ltage = 5.22 V