A splitter plug allows connection of an existing call lead as well as the new Frequency Precision sensor. The Splitter plug connects straight into the existing call system connection. It provides two sockets one for the new sensor and one for the old call lead.
The Rigid Splitter

The Flexible splitter
Rigid Splitter
size:1/4jack 70mm x 28mm x 10mm
weight 12g
battery life: no batteries needed
connection options: 1/4 jack, phono, BNC
Flexible Splitter
size:15mm x 15mm x 65mm
weight 80g
battery life: no batteries needed
connection options: 1/4 jack
