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TunnelTech 400

Electrochemical CO, NO, NO2, SO2 & O2 Air Quality Monitor

A road & rail tunnel monitor using well-proven technology to provide accurate and rapid results.

The TunnelTech 400 advanced electrochemical cell technology offers a cost-effective and flexible choice for a single-cell analyser
delivering superb accuracy and reliability at a very competitive price.

The TunnelTech 400 analyser electrochemical cell technology determines CO, NO NO2, SO2 or O2 concentrations. With no moving parts, reliability levels are extremely high and maintenance requirements are very low.


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