Environmental Monitoring Solutions
A low-cost precision road and rail tunnel monitor using proven technology to provide accurate and rapid results.
The TunnelTech 900 is an all-in-one Visibility and Air Quality Monitor based on backscatter light measurement technology for visibility and electrochemical cell technology for gas measurements.
It offers reliable visibility measurement and optional electrochemical cells to deliver superb and reliable gas measurements at a very competitive price.
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Have questions? Call +61 2 9622 6327
A low-cost precision road and rail tunnel monitor using proven technology to provide accurate and rapid results.
The TunnelTech 900 is an all-in-one Visibility and Air Quality Monitor based on backscatter light measurement technology for visibility and electrochemical cell technology for gas measurements.
It offers reliable visibility measurement and optional electrochemical cells to deliver superb and reliable gas measurements at a very competitive price.
| Gas Species | Visibility (standard), CO, NO, NO2 & SO2 (optional) |
| Measuring Units | m-1 (K factor) / E/m for visibility, ppm for CO, NO, NO2, SO2. |
| Ambient Conditions | -20oC to +60oC |
| Construction | SS316L (Standard) Silver / Brushed Metal SS316Ti (Optional Brackets) |
| Analogue Outputs (optional) | Up to 6 mA Loop outputs – 4-20mA Passive or Active Max Load 500Ω, isolated, fully configurable Up to 6 Relay outputs – SPCO, Max Load 500mA @ 60V DC, configurable as alarm contacts |
| Display | Monochrome LCD Display & Keypad Membrane |
| Power Supply | 24V DC |
Talk to our sales team. Call +61 2 9622 6327
The TunnelTech 305 Air Flow Monitor (AFM) is CODEL's industry proven tunnel air flow monitor.
The TunnelTech 500 is an advanced technology analyser which gives complete flexibility in the choice of measurement options.
The TunnelTech 201 Air Quality Monitor is an essential part of any road or rail tunnel safety system. Firstly, it monitors the atmosphere within the tunnel and ensures that the tunnel ventilation system provides sufficient clean air to protect tunnel users health and for drivers to clearly see the road ahead. The TunnelTech 201 analyser uses well proven infra-red techniques to determine CO and NO concentrations and optical attenuation to monitor visibility levels. As there is only one moving part, reliability levels are very high and maintenance requirements are extremely low.
The TunnelTech 602 Illuminance photometer monitors the average illuminance within a tunnel and its surroundings
The TunnelTech 801 monitoring system for continuous evaluation of air flow rate and flow direction in tunnels
The TunnelTech 204 Air Quality Monitor is an essential part of any road or rail tunnel safety system. Firstly, it monitors the atmosphere within the tunnel and ensures that the tunnel ventilation system provides sufficient clean air to protect tunnel users health and for drivers to clearly see the road ahead.
Tunnel Monitors