ADS Environmental Services IETG FlowHawk QR 775012 A4 - Manual (Page 59)

System Overview 2-23
Slimline Peak Combo Sensor
The Slimline Peak Combo Sensor with a standard 35-foot (10.6-m)
cable (p/n 8K-CS4-35) typically mounts at the bottom of the pipe
and measures ultrasonic depth and peak velocity using two
independent sensors.
Slimline Peak Combo Sensor
Ultrasonic Depth Sensor
This sensor measures ultrasonic depth using the same method as the
corresponding sensor in the Peak Combo Sensor.
Peak Velocity Sensor
This sensor measures peak velocity using the same method used by
the corresponding sensor in the Peak Combo Sensor.