When hazmat personnel arrived on the scene of an ammonia leak at a cold storage facility one night, they were ready for anything. One responder wore a G7 personal multi-gas detector and the team also had an EXO area gas monitor at the ready.
They immediately set up the G7 EXO downwind of the facility to determine the hazard level outside. At 21:08, the device detected high levels of ammonia (NH3), alerting the team of a potentially volatile situation. A high-alarm notification was sent to the fire chief, who was off duty many miles away.
The danger escalated as high-gas alarms from both ammonia sensors and hydrogen sulfide (H2S) sensors started coming in. The chief was able to monitor the situation remotely from his smartphone. With instant access to real-time data from the scene, he could follow and manage the response as it unfolded.
By 21:42, after 18 high-gas exposures were reported, the call was resolved and firefighters were off to their next emergency.