<img src="https://secure.leadforensics.com/77233.png" alt="" style="display:none;">


Cartridge Install


Blackline’s G7 offers an exclusive modular design with plug-and-play gas sensor cartridges that deliver industry-leading customization for nearly every industry and scenario. G7 offers two gas sensor cartridge options to support gas detection, lone worker monitoring and evacuation management. Clients can select from a broad range of  gas sensors, creating a custom configuration for for specific work environments.

Our cellular-connected G7c and satellite-connected G7x and G7 Bridge systems both support our Single-gas and Mutli-gas Diffusion Cartridges.


Field-replaceable for maximized uptime

Cartridges can be easily and quickly changed out in the field with new, pre-calibrated replacements once sensors reach the end of their operating life. Device uptime is maximized and maintenance time is minimized, ultimately saving businesses money.

G7’s modular interface allows the device to be converted on-site from a single to a quad-gas monitor in seconds. G7 combines the efficiency of a disposable gas detector with the innovation of a connected safety monitor — its modular design reduces the total number of devices needed, as one G7 can function as both a single and a quad-gas monitor, effectively reducing overall costs. When a sensor reaches the end of its serviceable life or gets damaged, the cartridge can simply be switched out for a new one. No more costly repairs or extended product downtimes.

Standard Cartridge

Blackline’s Standard cartridge is designed for lone worker safety monitoring scenarios where there is no threat of exposure to toxic or combustible gases. The Standard Cartridge features Blackline’s exclusive green SureSafe® light — when the light is on, workers can be confident that they’re connected to the Blackline Safety Cloud and that their safety is being monitored.

Single-gas Diffusion Cartridge

G7 with a Single-gas Diffusion cartridge operates as a gas detector and lone worker safety device, capable of monitoring your choice of one gas type. With a Single-gas cartridge, devices are customizable for specific working scenarios where comprehensive multi-gas coverage is not required.

Multi-gas Diffusion Cartridge

G7 with a Multi-gas cartridge operates as a gas detector and lone worker safety device, delivering comprehensive gas detection coverage of up to four gases. Sensor combinations are customizable in order to tailor gas detection to complex, hazardous working environments.

Multi-gas Pump Cartridge

Gas Sensors

G7 devices with Single-gas or Quad-gas cartridges are compatible with a variety of gas sensors. Blackline currently offers gas sensors to detect hydrogen sulfide (H­2S), explosive gases (LEL), carbon monoxide (CO) and oxygen (O2).

In development: Sulfur dioxide (SO2), hydrogen resistant carbon monoxide (CO-H) and ammonia (NH3)


Gas detection as a service

Blackline offers cartridge replacements as a service plan with new cartridges shipped to locations.

Simple maintenance

With G7’s modular design, sensor maintenance is uniquely simple. Bump tests and calibrations are performed using cal-caps or Blackline’s G7 Dock in-house, at your facility. All test data is communicated back to Blackline Live from the device — wirelessly and in real-time — for compliance tracking and reporting. With G7, never waste time downloading calibration logs again.

Servicing gas sensors and wasting money on sensor maintenance is a thing of the past. When a G7 gas sensor reaches the end of its serviceable life, simply switch the cartridge out for a new one on the spot without taking the device out of service.


We provide tools that enable employers to improve the outcome for workers who have suffered a safety incident, health issue or physical assault. We don’t prevent incidents but we are there to make the most of difficult and dangerous situations. 
How can we help your organization?