Blackline Safety G7x Wireless Gas Monitor

The Blackline Safety G7x Wireless Gas Monitor is a connected personal gas detection and lone worker monitoring solution designed for teams working in remote locations where reliable communication is essential. Paired with the portable G7 Bridge satellite base station, the G7x system provides last-mile connectivity between workers, monitoring personnel and response teams, helping ensure that gas alarms, health events, fall detection, no-motion alerts and SOS alerts are communicated in real time.

Using an industrial-strength 900 MHz radio link, G7x devices connect to the G7 Bridge from up to 2 km away in general use, with longer range possible in clear hilltop-to-hilltop conditions. The G7 Bridge then uses integrated cellular and Iridium satellite connectivity to help maintain communication, even in remote areas where traditional cellular coverage may be limited. Up to five G7x devices can connect to one G7 Bridge, making it a practical solution for small teams, mobile crews and isolated work environments.

The G7x platform is highly configurable, with modular plug-and-play gas cartridges, configurable alarms, worker check-in timers, two-way messaging, real-time location data and cloud-based reporting through Blackline Live and Blackline Analytics. Bump test and calibration information is also communicated automatically, supporting live compliance visibility without manual data collection.

Available through Westech Industrial in Saskatchewan, Manitoba, Ontario, Quebec, New Brunswick, Newfoundland and Labrador, Nova Scotia, and Prince Edward Island, the Blackline Safety G7x Wireless Gas Monitor can be supported as part of a broader worker safety, gas detection or remote monitoring program. Westech Industrial can assist with product selection, service support, implementation guidance and custom fabrication capabilities for integrated safety monitoring projects.

Blackline Safety G7x Wireless Gas Monitor

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Description

Last-Mile Connectivity for Remote Worker Safety

The G7x wireless gas monitor helps teams maintain safety visibility in remote work environments. It works with the G7 Bridge to connect workers to live monitoring personnel. As a result, teams can support employees working beyond conventional communication coverage. The user-worn G7x connects to the bridge through an industrial-quality 900 MHz radio link. This connection helps transmit safety events, alerts and location information in real time.

G7 Bridge Satellite and Cellular Communication

The G7 Bridge acts as a compact, portable base station for G7x devices. It uses cellular communication where available and Iridium satellite connectivity where required. Therefore, teams can maintain communication in remote areas where cellular coverage may be limited. The bridge is self-powered and portable, so crews can move it between vehicles or jobsite locations. In addition, up to five G7x devices can connect to one G7 Bridge.

Two-Way Messaging and Live Monitoring

G7x supports two-way text messaging between workers and monitoring personnel. This feature helps teams communicate during alerts, incidents or changing site conditions. When a gas alarm, injury or health event occurs, monitoring personnel can act quickly. They can also help mobilize responders to the worker’s location. Additionally, the system can support real-time evacuation communication when site conditions change.

Modular Gas Detection Options

The G7x system uses a modular cartridge design for flexible gas detection. Teams can select standard, single-gas, multi-gas diffusion or multi-gas pump cartridge configurations. This approach helps match the device to the work environment. Sensor options include H₂S, CO, O₂, CO₂, NH₃, SO₂, NO₂, HCN, LEL and photoionization detection (PID). Therefore, the G7x wireless gas monitor can support many personal gas detection applications.

Lone Worker Monitoring Functions

G7x provides more than gas detection. It also supports lone worker monitoring with fall detection, no-motion detection and worker check-ins. Workers can use the SOS latch to request help during an emergency. They can also activate silent SOS when discretion is needed. Additionally, configurable low-battery alerts help teams manage device readiness throughout the shift.

Location Awareness for Faster Response

The G7x system uses GPS location technology to support faster emergency response. It can also work with Blackline Safety location beacons for indoor location awareness. Event and alert data is time and location-stamped. Consequently, monitoring teams can better understand where an incident occurred. This information helps responders locate workers more efficiently.

Automated Compliance and Reporting

G7x automatically communicates event data, alert data, bump test information and calibration information to the cloud. Through Blackline Analytics, teams can review safety and compliance data more efficiently. This process reduces manual data collection and helps improve reporting visibility. As a result, safety teams can spend more time reviewing trends and less time compiling records.

Configurable Safety Settings

Teams can manage alert settings, alarm settings and check-in timer intervals through the Blackline Live portal. Device configuration changes can also be completed wirelessly. In addition, firmware updates can be completed over the air. This helps keep devices current and aligned with company safety policies.

Clear Worker Notifications

The G7x uses audible, visual and vibration indicators to notify workers of alarm status. The green SureSafe light shows powered and connected status. Yellow lights indicate pending or warning alarms, while red lights communicate active alerts. Finally, blue LiveResponse lights confirm that a monitoring team has acknowledged the alert.

Applications

The Blackline Safety G7x Wireless Gas Monitor is well suited for remote and connected safety monitoring applications where workers need reliable communication, gas detection and lone worker protection. Its combination of user-worn monitoring, portable bridge connectivity, satellite communication and cloud-based reporting makes it valuable for teams operating in isolated, changing or hard-to-reach environments.

Common applications may include:

  • Remote lone worker monitoring
  • Wireless personal gas detection
  • Small crew monitoring in remote work areas
  • Gas alarm communication to live monitoring personnel
  • Worker check-in and SOS alerting
  • Fall detection and no-motion detection
  • Mobile field crews using portable base station coverage
  • Remote jobsite evacuation notifications
  • Bump test and calibration compliance reporting
  • Safety monitoring where cellular coverage may be limited

Documents

BlacklineSafety_G7x Wireless Gas Monitor_Data Sheet_June2026_Westech.pdf

Manufacturer info

A leading supplier of wirelessly connected gas detection and lone worker monitoring products in the world. They offer the broadest and most complete portfolio available anywhere.

Website: https://www.blacklinesafety.com

SPECS

Product
Blackline Safety G7x Wireless Gas Monitor with G7 Bridge.
System components
G7x user-worn device and G7 Bridge portable satellite base station.
Communication approach
G7x connects to G7 Bridge by 900 MHz radio link; G7 Bridge uses cellular and Iridium satellite communication.
G7x to G7 Bridge radio link
NA radio: 902.0–928.0 MHz, 1 Watt; AS/NZ radio: 915.0–928.0 MHz; internal antenna.
G7 Bridge cellular radio
4G LTE bands 1, 12, 13, 18, 19, 2, 20, 26, 28, 3, 38, 39, 4, 40, 41, 5, 7, 8; 3G UMTS 1900, 2100, 850, 900; 2G GSM 850/900/1800/1900.
G7 Bridge satellite communication
Iridium satellite, 1621 MHz.
G7 Bridge range
General use up to 2 km; hilltop-to-hilltop 10+ km; terrain, foliage and buildings affect range.
G7x devices per G7 Bridge
Up to five G7x devices can connect to one G7 Bridge.
Functional safety settings
Fall detection, no-motion detection, SOS latch, silent SOS, low-battery threshold and worker check-in.
Fall and no-motion detection
Tri-axis accelerometer, tri-axis gyro, software processing, configurable sensitivity and configurable no-motion time.
Worker check-in
Configurable timer from 30 to 180 minutes or off; automatic check-in when driving.
Gas cartridge alerts and events
Under limit, over limit, TWA, STEL, high gas alert, low gas alert, bump test and calibration notification, bump test and calibration failure.
Wireless updates
Device configuration changes supported; firmware over-the-air updates supported.
G7x display
168 by 144 pixel graphical high-contrast liquid crystal display with front lighting.
G7x user interface
Three-button keypad, power button and SOS latch.
Language support
EN, FR, ES, DE, IT, NL, PT.
User notification lights
Green SureSafe light for powered and connected status; yellow top and front lights for pending and warning alarms; red top and front lights for communicated alerts; blue LiveResponse top and front lights for monitoring acknowledgement.
Alarm indicators
Speaker, LED lights and vibration motor.
Speaker sound pressure level
Approximately 95 dB at 11.8 in. (30 cm).
G7x battery
Rechargeable 1100 mAh Li-ion battery.
G7x battery life
18 hours at 68°F (20°C) under normal usage.
G7x charge time
4 hours.
G7x location technology
GPS; 72-channel receiver; Assisted-GNSS: No.
G7x location accuracy
5 metres, CEP 50%, 24 hours stationary sky-view.
Indoor location technology
Blackline Safety location beacons.
Location update frequency
Tied to Bridge schedule.
G7x with Standard Cartridge size and weight
2.52 in. x 4.88 in. x 1.06 in. (64 mm x 124 mm x 29 mm); 5.7 oz (162 g).
G7x with Single-Gas Cartridge size and weight
2.52 in. x 5.04 in. x 1.06 in. (64 mm x 128 mm x 29 mm); 5.9 oz (167 g).
G7x with Multi-Gas Diffusion Cartridge size and weight
2.52 in. x 5.91 in. x 1.06 in. (66 mm x 150 mm x 29 mm); 6.8 oz (192 g).
G7x with Multi-Gas Pump Cartridge size and weight
2.6 in. x 5.95 in. x 1.52 in. (66 mm x 151 mm x 38.5 mm); 8.4 oz (238 g).
Pump cartridge target flow rate
300 ml/min.
Pump cartridge maximum hose length
100 ft x 0.188 in. diameter (30.2 m x 4.78 mm) or 50 ft x 0.125 in. diameter (15.25 m x 3.17 mm).
G7x approvals
FCC, ISED, RCM, SAR; contains FCC ID 2AZEH-AMU900 and IC 27118-AMU900.
G7x Canada and USA hazardous location approvals
MC267256; Class I Division 1 Groups A, B, C, D T4; Class I Zone 0 AEx da ia IIC T4 Ga; Ex da ia IIC T4 Ga.
G7x IECEx approval
CSA 17.0005X; Ex ib IIC T4 Gb.
G7x LEL approvals
CSA C22.2 No.152; ISA 12.13.01.
G7x LEL Pump Cartridge approvals
CSA C22.2 No.152, 32°F to 104°F (0°C ≤ Ta ≤ 40°C); ANSI/ISA-12.13.01, 14°F to 104°F (-10°C ≤ Ta ≤ 40°C).
G7x storage temperature
-22°F to 140°F (-30°C to 60°C).
G7x operating temperature
-4°F to 131°F (-20°C to 55°C).
G7x ingress protection
Designed to meet IP67.
G7x warranty
Two-year limited warranty.
Cartridge warranty
Lifetime with service plan.
Blackline Complete
Three-year operating lease with three-year warranty.
G7 Bridge size and weight
2.87 in. x 4.21 in. x 5.55 in. (73 mm x 107 mm x 141 mm), measurements do not include mount; 19.04 oz (540 g).
G7 Bridge battery
Rechargeable 6800 mAh Li-ion battery.
G7 Bridge battery life
50 hours at 68°F (20°C); 44 hours at -4°F (-20°C); 14 hours at -40°F (-40°C); hard wire kit recommended anytime below -4°F (-20°C).
G7 Bridge charging connector
Micro USB.
G7 Bridge antenna
Internal.
G7 Bridge storage temperature
-22°F to 140°F (-30°C to 60°C).
G7 Bridge operating temperature
-4°F to 131°F (-20°C to 55°C).
G7 Bridge charging temperature
32°F to 113°F (0°C to 45°C).
G7 Bridge ingress protection
Designed to meet IP65.
G7 Bridge warranty
One-year limited warranty.
Ammonia (NH₃) sensor option
Electrochemical; 0–100 ppm; 0.1 ppm resolution.
High-range ammonia (NH₃) sensor option
Electrochemical; 0–500 ppm; 1 ppm resolution.
Carbon dioxide (CO₂) sensor option
NDIR; 0–50,000 ppm; 50 ppm resolution.
Carbon monoxide (CO) sensor option
Electrochemical; 0–500 ppm; 1 ppm resolution.
Chlorine (Cl₂) sensor option
Electrochemical; 0–20 ppm; 0.1 ppm resolution; Does not work with the pump cartridge.
Chlorine dioxide (ClO₂) sensor option
Electrochemical; 0–2 ppm; 0.01 ppm resolution; Does not work with the pump cartridge.
Combustible-infrared (LEL-IR) sensor option
NDIR; 0–100% LEL; 1% LEL resolution.
Combustible MPS (LEL-MPS) sensor option
Molecular property spectrometer; 0–100% LEL; 1% LEL resolution; Operating pressure is 80 to 120 kPa (11.6 psi to 17.4 psi).
COSH sensor option
Electrochemical; 0–500 ppm CO and 0–100 ppm H₂S; 1 ppm CO and 0.1 ppm H₂S resolution.
High-range carbon monoxide (CO) sensor option
Electrochemical; 0–2000 ppm; 5 ppm resolution.
High-range hydrogen sulfide (H₂S) sensor option
Electrochemical; 0–500 ppm; 0.5 ppm resolution.
Hydrogen cyanide (HCN) sensor option
Electrochemical; 0–30 ppm; 0.1 ppm resolution.
Hydrogen fluoride (HF) sensor option
Electrochemical; 0–10 ppm; 0.1 ppm resolution; Does not work with the pump cartridge.
Hydrogen resistant carbon monoxide (CO-H) sensor option
Electrochemical; 0–500 ppm; 1 ppm resolution.
Hydrogen sulfide (H₂S) sensor option
Electrochemical; 0–100 ppm; 0.1 ppm resolution.
Nitrogen dioxide (NO₂) sensor option
Electrochemical; 0–50 ppm; 0.1 ppm resolution.
Oxygen (O₂) sensor option
Pumped electrochemical; 0–25% vol; 0.1% vol resolution.
Ozone (O₃) sensor option
Electrochemical; 0–1 ppm; 0.01 ppm resolution; Does not work with the pump cartridge.
Photoionization (PID) ppm sensor option
PID; 0–4,000 ppm; dynamic resolution dependent on correction factor and 0.1 ppm resolution.
Sulfur dioxide (SO₂) sensor option
Electrochemical; 0–100 ppm; 0.1 ppm resolution.

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PRODUCT FAQ's

What is the Blackline Safety G7x Wireless Gas Monitor?
The Blackline Safety G7x Wireless Gas Monitor is a connected personal gas detection and lone worker monitoring device that works with the G7 Bridge portable satellite base station. Together, they help keep remote workers connected to live monitoring personnel through wireless radio, cellular and satellite communication.
How does G7x help protect remote workers?
G7x supports gas alarms, fall detection, no-motion detection, worker check-ins, SOS alerts, silent SOS activation, two-way messaging and location-aware alerts. When an incident occurs, alert data can be communicated to monitoring personnel so responders can be mobilized to the worker’s location.
What is the G7 Bridge?
The G7 Bridge is the portable base station used with G7x devices. Up to five G7x devices can connect to one G7 Bridge using an industrial-quality 900 MHz radio link. The bridge uses cellular and Iridium satellite communication to help connect remote workers to monitoring personnel.
How far can G7x work from the G7 Bridge?
In general use, G7x can connect to the G7 Bridge from up to 2 km away. In clear hilltop-to-hilltop conditions, the radio link can reach 10+ km. Actual range can be affected by terrain, foliage and buildings.
What gas detection options are available with G7x?
G7x supports modular gas cartridges, including standard, single-gas, multi-gas diffusion and multi-gas pump configurations. Sensor options for gases such as H₂S, CO, O₂, CO₂, NH₃, SO₂, NO₂, HCN, LEL and photoionization detection (PID), depending on the cartridge and sensor configuration selected.
Does G7x support compliance reporting?
Yes. G7x automatically streams event data, alert data, bump test information and calibration data to the cloud. This supports live compliance visibility and reporting through Blackline Analytics, helping teams reduce manual data collection.
Can Westech Industrial support the G7x Wireless Gas Monitor?
Yes. Westech Industrial can assist with product selection, service support, implementation guidance and configuration considerations for Blackline Safety G7x Wireless Gas Monitor applications. Westech can also support broader safety monitoring projects through custom fabrication capabilities, integrated solutions and project support.
Where is the Blackline Safety G7x Wireless Gas Monitor available through Westech Industrial?
The Blackline Safety G7x Wireless Gas Monitor is available through Westech Industrial in Saskatchewan, Manitoba, Ontario, Quebec, New Brunswick, Newfoundland and Labrador, Nova Scotia, and Prince Edward Island.