G7x Personal Monitor

Blackline Safety’s G7x system uses integrated satellite and cellular connectivity to wirelessly link employees and lone workers to real people, while automating data analytics and compliance reporting. Should a gas leak, injury, or health event occur, G7x confidently accounts for everyone’s well-being and whereabouts in real-time, so no call for help ever goes unanswered – even in the most remote locations. All safety incidents are communicated to live monitoring personnel who can mobilize responders to an employee’s exact location or trigger an evacuation in real-time. Featuring two-way messaging, personnel can communicate directly with the worker. Satellite connection is managed through the G7 Bridge, and can be mounted to vehicles or switched between vehicles easily.


  • Fall detection and no-motion detection
  • SOS latch
  • Silent SOS
  • Low-battery
  • Worker check-in
  • Two-way voice and text messaging
  • Push-to-talk
  • Assisted GPS
  • Gas alarms
  • Indoor location technology
  • Configuration modes


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Blackline Safety Lone Worker Monitoring

With a modular design, the G7x system delivers exclusive customizability. Gas detection is tailored to work environments with a selection of plug-and play cartridges and sensors – with all features being completely configurable. Blackline devices collect more data than ever before, automatically streaming it to the Blackline Safety Network. All event and alert data is time and location-stamped, powering our Blackline Analytics reporting platform. Bump test and calibration data is also communicated seamlessly, for live compliance visibility and reporting. Teams can easily analyzer their data without ever having to manually collect and compile it themselves.

G7x requires connectivity to the G7 Bridge device to provide remote satellite communication for applications outside the coverage of cell towers. The G7x system includes the G7x user-worn device and G7 bridge portable satellite and cellular base station. Leveraging 3G and Iridium satellite networks, connectivity seamlessly transitions to satellite when cellular becomes unavailable, providing true last-mile monitoring. Up to five G7x devices connect with G7 Bridge through an industrial-quality 900 MHz radio link from up to 2km away. G7 Bridge can mass-notify employees of the need to evacuate and connect workers to monitoring personnel via two-way messaging. G7 Bridge is self-powered and portable, allowing users to quickly move it from one vehicle to another. It has your teams’ back – at all times , no matter their location.

G7x Datasheet

G7c Brochure

Available Sensors and Ranges: 

Gas Name Formula Range Note:
Ammonia NH3 0-100 ppm
High-Range Ammonia NH3 0-500 ppm
Carbon Monoxide CO 0-500 ppm
High-Range Carbon Monoxide CO 0-2000 ppm
Hydrogen Resistant Carbon Monoxide CO 0-500 ppm
Carbon Dioxide CO2 0-50,000 ppm
Chlorine Cl2 0-20 ppm
Chlorine Dioxide ClO2 0-2 ppm
COSH (Dual CO/H2s) H2S/CO 0-100 ppm / 0-500 ppm
Hydrogen Cyanide HCN 0-30 ppm
Hydrogen Sulfide H2S 0-100 ppm
High-Range Hydrogen Sulfide H2S 0-500 ppm
LEL-Infrared LEL 0-100% LEL
Nitrogen Dioxide NO2 0-50 ppm
Oxygen O2 0-25% Vol.
Ozone O3 0-1 ppm
PID VOC 0-4,000 ppm* *Depends on Correction Factor
PID VOC 0-10,000 ppb* *Depends on Correction Factor
Sulfur Dioxide SO2 0-100 ppm


DOD Technologies, Inc. is a certified National Distributor of Blackline Safety Products.