Our G8 Single/Multi-Gas Monitor connects workers with help when they need it most.
To take your gas safety program further, your devices are also your key to Blackline Live, and the powerful insights and tools only available through our connected safety platform.
When hazardous gases are present, there's no room for uncertainty.
G8 delivers advanced gas detection in a rugged, intrinsically safe device designed to perform in the most demanding environments.
With swappable cartridges and coverage for virtually any gas your team may encounter, G8 provides reliable protection without slowing work down.
And it does so much more than detect gases.
Blackline G8 combines real-time alerts, built-in radio communication, and direct-to-cloud data to keep workers safe while improving visibility, response, and productivity across every site.
Explore: G8 Service Plans and PricingProtect Your Team and Keep Work Moving
Connected Gas Detection
Protect your people from gas exposures with a multi gas detector that’s built for how they work:
- Multi-Gas Monitoring capable of detecting up to 5 gases simultaneously from 20+ sensors, with optional pump cartridge to easily switch between pre-entry and continuous gas monitoring.
- Advanced 4G LTE cellular connectivity with auto-switching between major carriers for the best coverage.
- Swappable cartridges to adapt the same devices for different situational requirements (lone worker, single-gas, multi-gas, or multi-gas pump).
- Sensor readings to monitor the latest gas sensor data, spot elevated readings sooner and act faster.
- Configurable alert thresholds to align with site policies, regulatory requirements, and job-specific risk profiles.
- Field-optimized, industrial design with a bright display and quick-access flashlight for demanding work environments.
Compare Devices: See how G8 advances beyond the trusted gas detection features of G7x and G6.
Multi-Gas Monitoring and Situational Awareness
Always know where your people are, what they’re facing, and when something changes—so you can respond quickly, confidently, and with the right information.
- Dual-band GPS/GNSS to pinpoint worker location, ensure quick incident response, and to show when and where every alarm, event and near-miss takes place.
- Real-time alerts from your deployed gas detection devices for time-weighted average (TWA), short-term exposure limit (STEL), high/low gas levels, bump tests, calibrations, falls, no-motion, missed check-ins, proximity-based events, and silent and emergency SOS.
- Direct-to-cloud data streaming from the field to Blackline Live for alert management and worksite visibility.
- 24/7 live monitoring through your own safety control center, Blackline’s in-house Safety Operations Center (SOC), or our global Alarm Receiving Center (ARC) partners.
Human-to-Human Communication
Workers can get help quickly and work together better with three ways to communicate, all integrated within their gas detection devices:
- Emergency Voice with a real person checking in when an alert is triggered and sending immediate help if needed.*
*connects to your own control room or Blackline’s 24/7 live monitoring service - Push-to-Talk works just like a two-way radio, using a dedicated button for clear audio and optional remote speaker mic (RSM) rivaling any industrial radio — so teams can coordinate quickly across sites.
- Text messaging for fast mass notifications, like evacuations or extreme weather events, and for workers to send custom or pre-set messages to monitoring personnel when help is needed.
Data and Analytics
Stay one step ahead of hazards, simplify compliance, and keep work moving safely with gas detection equipment that allows your operations and workforce access to:
- Automated reporting that saves you time, shows if gas safety devices are being worn, turned on, and calibrated for easier compliance management.
- Historical trend data on gas leaks and exposures supports incident investigation, root cause analysis, and continuous improvement of gas safety practices.
- ZoneAwareTM to draw site-specific areas and understand who is in each zone, spot bottlenecks, and monitor movement to muster points.
Join 2,250+ Organizations Keeping Workers Safe with Connected Gas Detection
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G8 Gas Monitor Service Plans & Pricing
Compare device costs and service plans in your preferred currency. Discover useful features to enhance your worker safety program. Discuss enterprise and custom solutions for gas detection equipment with our team.
Explore Gas Detection Resources
Gas Detection
Learn how Gasum upgraded to Blackline wearables—adding multi-gas detection, live monitoring, and lone worker alerts to protect crews across remote biogas facilities.
18
biogas plants
0
detectors sent offsite for calibration
Exposure to toxic gases can go from a strange feeling in your stomach to a medical emergency in an instant. Luckily, before Mason even had a chance to consider if his nausea was something to worry about, his Blackline Safety gas monitor had his back.
25.2
ppm H2S reading
24/7
live monitoring
Discover five essential tips to improve single and multi-gas sensor performance and life expectancy.
20°C
ideal temperature for gas sensor
50%
ideal humidity for gas sensor
Explore how companies use smart technology, risk assessments and centralized gas monitoring to keep their people safe in confined spaces.
4
advancements shaping confined space safety
80%
reduction in at-risk labor hours when using centralized monitoring
G8 Gas Monitor Accessories and Supporting Products
G7x
For even greater coverage, G8 can operate in a mixed fleet with G7x and G7 bridge for satellite connectivity in the most remote places
TagAssignTM
Simplifies device assignments as workers just tap their NFC tag to a G8 device and they’re automatically connected and ready to go
Dock
Convenient solution for calibrating, bump testing and charging your gas detectors, with no complicated ethernet or Wi-Fi connections required
RSM
Connect a remote speaker microphone for crisp communication even in the loudest work environments
Location Beacon
Enhances location transmission indoors and outdoors when GPS falls short
G8 Multi-Unit Charger
Available in a 5-unit or 25-unit configuration. Streamline operations with the ability to conveniently and efficiently charge multiple G8 devices at the same time
Over-the-air updates
Automated firmware and configuration updates eliminate manual upkeep and keep devices compliant
ZoneAwareTM
Draw site-specific areas to see who is in each zone, spot bottlenecks and monitor movement to muster points
Multi-gas pump
Powerful internal pump with four gas monitoring can be added to G8 to switch between pre-entry and continuous monitoring modes at any time.
Swappable Gas Sensor Cartridges
Customize your multi-gas sensor configuration for a specific application, or choose from over 20 standard single / multi-gas cartridges. Easily swap between compatible single gas and multi-gas sensors on your device as required.
User Support and Documents
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G8 Personal Gas Detector: Product Brochure
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Connected Safety Brochure
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G8 Resources
Datasheet, Documentation and Accessories