www.safetyandhealthmagazine.com/articles/14094-gas-monitor

Gas monitor
May 22, 2016
The RPB GX4T is an intelligent gas monitor that can detect up to four gases simultaneously, ensuring the air workers breathe is safe. The GX4 is a smart device that tracks everything from calibrations and power usage to gas level changes. All this information can be accessed from any device through the unit’s Wi-Fi module. Connect the GX4 from your laptop, tablet, phone or via a network.
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