Available in headphones or
digital styles, the Price Type AA meters offer fast, accurate
measurements for all but the lowest flows.

The headphone Model
generates one click every rotation or one every five rotations of the
shaft, according to the contact connection selected.

In the digital version, a
slotted hub extension rotates between a light-emitting diode and a
photo-receptor. The pulses produced when the slot aligns aligns with the
LED and phototransistor are routed to the digital flow indicator (Model
1100), which converts them to a direct digital readout of stream
velocity.

Either type can be suspended
from a bridge or boat using the suspension cable outfit with a lead
weight; or it can be mounted to on a wading rod for measurements in
shallow streams, ditches, conduits or wastewater systems.