A CO2 alarm is a great tool to warn of high CO2 accumulations in a confined space. The typical CO2 alarm installation includes a CO2 sensing probe (installed in the confined space) and a control unit (installed just outside the confined space being monitored) which displays the current CO2 level. An audible alarm and visual indicator will warn of high CO2 levels from a safe place before entry into the confined space.
Other leak detection tools are available including over-run alarms on green air supply nitrogen separators and in-line flow meters for beverage gas monitoring. As always, the active monitoring from CO2 level alarms are far superior to the passive leak detection of balls floating inside of flow meters. If you have this type of leak detection currently (tiny floating ball inside of a plastic tube) be aware that this type of leak detection is ineffective during busy service times.
We recommend active monitoring of CO2 levels over passive leak detection to our customers. We can advise you on the cost and supply of most available leak detection options.