Gone are the days of traditional gas detectors that functioned like smoke alarms, notifying only the wearer and those in earshot of a dangerous environment. Meet G7c/x — the world’s first 3G-connected gas detector with integrated lone worker monitoring and evacuation management tools. In the event of an emergency, G7c/x (c – cellular; x – satellite) wirelessly connects your team members with live monitoring personnel to mobilize and manage the fastest possible emergency responses.

Not just a gas detector — complete, real-time situational awareness

Blackline designed G7c/x to address every facet of your safety program. Our technology automatically watches over team members and calls for help, even when the employee can’t.

Potential fall and no-motion events automatically trigger a pending alarm, asking you to confirm that you are OK — G7c/x will escalate pending alarms to alerts — these alerts are then communicated to monitoring personnel. G7c/x’s red SOS latch lets you manually trigger a call for help when assistance is required, automatically connecting you to a monitoring team.

Continuing to revolutionize gas detection

Blackline Safety is the world’s first gas detector and lone worker monitor to include a NEW push-to-talk service option that allows G7c to function as a two-way radio. G7c users will have the option to immediately call teammates on the same channel or to switch channels to easily communicate with other teams. Unlike conventional radios, push-to-talk (PTT) has no radio licensing and no range limit. PTT provides an organization with radio functionality without the need to invest in a separate fleet of radios. It combines a world-leading gas detector, a lone worker safety monitor and a two-way radio. Plus, it eliminates the need for employees to wear and charge multiple devices.

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  • Real-time situational awareness
  • 3G communication in over 100 countries
  • Connectivity with instant alerting
  • Two-way speakerphone
  • 1-4 simultaneous gas monitoring
  • Customizable gas detector
  • Simple wireless configuration
  • Brilliant LCD screen
  • Simple, user firendly interface
  • Real-time compliance management and reporting
  • Compatible with Blackline LIVE web-based monitoring software

  • Size (w/quad gas cartridge): 2.52” x 5.91” x 1.06” (66 mm x 150 mm x 27 mm)
  • Weight: 6.8 oz. (192g)
  • Temperature: -20°C to 55°C (-4°F to 131°F)
  • Battery Life: 18 hours continuous operation at 20° C (68° F)
  • Charge Time: 4 Hours
  • Alert Features:
    • Fall detection and No motion detection
    • Emergency latch
    • Low-battery
    • Worker check-in
  • Safety Features:
    • Low, High, TWA and STEL alarms
    • Bump test and calibration failure alert
  • Display: 168 by 144 pixel graphical, high contrast, liquid crystal display
  • User Notification:
    • Green SureSafe® light
    • Yellow top and front lights
    • Red top and front lights
    • Blue LiveResponseTM top and front lights
    • Audible: ~90 dB @ 10 cm
    • Speakerphone and phone modes
  • Location Technology:
    • GPS Radio: 48-channel high sensitivity
    • Assisted-GPS: Yes
    • GPS Accuracy: ~5 m (16 ft) Outdoors
    • Indoor location technology: Blackline Safety location beacons
    • Location update frequency: G7c 10 sec, G7x 15 min
  • Warranty
    • G7: 2 years
    • Cartridges: Lifetime
    • G7 Complete Plan: 3 years
Sensor Type Measuring Range Resolution
H2S 0 – 200 ppm 0.1 ppm
CO 0 – 1000 ppm 1 ppm
LEL 0 – 100% LEL
0 – 0.5% v/v
O2 0 – 30% 0.1%
CO2 50 – 50000 ppm 50 ppm
NH3 0.5 – 100 ppm 0.1 ppm