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Monitors four gases: H2S, CO, O2, and combustible gases (LEL)
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Automatic zero and O2 auto-calibration on startup (optional, enabled by default)
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Bump test capability to confirm sensor response
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Automatic calibration capability for O2 sensor
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Data logging with 16-hour capacity
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Event logging of 10 most recent gas alarm events
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Latching alarm option
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Safe Mode displays SAFE when no hazardous gas detected
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Stealth Mode disables backlight, visual and audible alarms
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Low Alarm Acknowledge to temporarily silence audible alarm during low alarm
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Confidence Beep provides continuous audible confirmation of operation
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IntelliFlash provides continuous visual confirmation via green LED
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Configurable alarm setpoints: Low, High, TWA, and STEL
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Time-weighted average (TWA) calculation for H2S and CO
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Short-term exposure limit (STEL) calculation for H2S and CO
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Peak exposure tracking (maximum or minimum for O2)
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Multiple alarm types: Low, High, TWA, STEL, Multi-gas, Over Limit (OL)
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Infrared (IR) calibration lock option to ensure calibrations are recorded
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Force Calibration When Overdue option to require calibration
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Force Bump When Overdue option to require bump testing
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Startup message customization (up to 50 characters total)
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Temperature-dependent sensor response
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Dead band suppression near zero values
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Automatic deactivation if battery critically low or all sensors fail
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IP68 rated for dust and water resistance
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Certified for intrinsic safety in explosive atmospheres



