PRO 1A Base Unit:
1 Engine RPM Channels
1 Drive Shaft RPM Channel
8 Exhaust Gas Channels
1 Internal Battery Voltage Sensor
2 Analog Transducers

Expandable:
2nd Engine RPM Channel
Up to 4 total RPM/Digital Channels
Up to 8 total Analog Channels

Sample Rates:
Up to 100 samples per second

Recording Time :
Up to 50 seconds

Dimensions:
8.625” (L) X 5.125” (W) X 2.750” (H)

Weight:
2 pounds, 8 ounces