Ion Science GasClam 2 — In-Situ Continuous Borehole Ground Gas Monitor
Ion Science GasClam 2
The Ion Science GasClam 2 is the original in-situ continuous borehole ground gas monitor — a stainless-steel, intrinsically safe logger that sits down the hole and records ground gas concentrations unattended for weeks at a time. Instead of the handful of spot readings a manual survey produces, GasClam 2 captures gas behaviour continuously at user-defined intervals, so you see the response to barometric pressure swings, rainfall, and water-table movement that drives worst-case ground gas risk. Data is retrieved through the GasClam 2 software or exported to a spreadsheet, and the unit can run as a standalone logger or stream live via optional modem or communication cable telemetry.
GasClam 2 is certified for hazardous Zone 1 and is available in methane/carbon dioxide range combinations, with optional H2S/CO electrochemical sensors and an optional PID for VOCs.
APPLICATIONS
Ground Gas Risk Assessment: Continuous CH4 and CO2 characterization for brownfield and redevelopment sites.
Landfill Monitoring: Perimeter and migration boreholes, gas control system verification.
Former Industrial and Mining Land: Mine gas, coal measures, and made-ground investigations.
Vapor Intrusion Studies: Long-term subsurface data with the optional VOC (PID) sensor.
Regulatory and Planning Submissions: Defensible long-duration datasets that capture worst-case conditions.
Remote and Unattended Sites: Telemetry-linked continuous monitoring without repeat site visits.
WHY THE GASCLAM 2
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Continuous in-situ logging captures gas peaks that spot monitoring misses entirely
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Stainless steel body, intrinsically safe, certified for hazardous Zone 1
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Measures CH4 and CO2 plus barometric pressure, temperature, and borehole conditions
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Optional dual H2S/CO sensor and optional VOC (PID) channel
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Standalone logging or live telemetry via modem or comms cable
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Cuts site visits and labour cost versus repeat manual gas monitoring rounds
CONFIGURATION CODES
OXX = CH4/CO2 only ODX = plus dual H2S/CO sensor ODV = plus dual H2S/CO sensor and VOC (PID) channel