Reduced number of site visits by a field engineer
GasClam 2 Ground Gas Monitor
Fixed Gas Detector from ION Science
The GasClam 2 continuous ground gas detector is a unique in-borehole gas monitoring system developed for the unattended collection of long-term gas data

About GasClam 2 Ground Gas Monitor
The GasClam 2 is well-suited for continuous ground gas monitoring as it collects unmanned continuous ground gas concentration data as well as parameters that are known to control it – subsurface pressure, atmospheric pressure and water level.
GasClam 2 Continuous Ground Gas Detector collects unmanned continuous ground gas concentration data as well as parameters that are known to control it.
For further supporting documentation for GasClam 2 continuous ground gas monitor, please see below.
Why choose GasClam 2 Ground Gas Monitor
Reducing the overall length of ground gas monitoring programmes as legislative data requirements can be met quicker
Supports and industry recognised top practice approach to ground-gas monitoring
Battery powered deployment for over 3 months (depending on logging frequency)
Reduces number of site visits
Demonstrates regulatory compliance and due diligence
GasClam 2 Ground Gas Monitor technical data
- Gas
- CO2**, CH4**, O2, CO*, H2S*, VOC*
- Method / Type
- CO2, CH4: Infrared O2, CO, H2S: Electrochemical VOC: PID
- Range
- CO2: 0-100 % CO2: 0-5 % CH4: 0-100% CH4: 0-5% O2: 0-25 % CO: 0-2000 ppm H2S: 0-100 ppm VOC: 0-4000 ppm
- Resolution
- CO2 0-100 %: 1 % above 50 % 0.5 % below 50 % CO2 0-5 %: 0.05% above 2.5% 0.025 below 2.5 % CH4 0-100 %: 1 % above 50 % 0.5 % below 50 % CH4 0-5 %: 0.05 % above 2.5 % 0.025 below 2.5 % O2: 0.1 % CO, H2S, VOC: 1 ppm
- Accuracy
- CO2 0-100 %, CO2 0-5 %, CH4 0-100 %, CH4 0-5 %: ± 2 % FSD O2: ± 5 % of reading ± 1 digit CO: < ± 3 ppm at 0 ± 5 % at 250 ppm ± 10 % full scale H2S: < ± 1 ppm at 0 ± 2.5 % at 50 ppm VOC: ± 5 % of reading ± 1 digit
- Method / Type
- Electrochemical
- Range
- CO: 0 – 500 ppm H2S: 0 – 200 ppm
- Resolution
- 1 ppm
- Accuracy
- CO: < ± 3 ppm at 0 ± 3 % at 250 ppm H2S: < ± 1 ppm at 0 ± 2 % at 100 ppm
- Barometric Pressure
- Piezoelectric, 800 to 1250, 1 mBar
- Borehole Pressure
- Piezoelectric, 800 to 1250, 1 mBar
- Temperature
- Internal Chip, – 5 to + 50 °C or 22 to 122 ° F
- Water Depth
- Piezoelectric, 0 – 25 m (Various available) 0.01 m ##
- Power Options
- Internal: Option of Lithium primary cells or Duracell Alkaline D-Cells or Rechargeable battery pack
- Typical battery life (hourly sampling)
- Lithium primary cells – 3 months Alkaline cells – 1 month Rechargeable battery pack – 3 weeks
- Weight and Dimensions
- 7.5 kg (16. lbs) Overall length: 90 cm (35.4 in) – Borehole tube length: 83 cm ( 32.6 in)
- Protection
- IP68 rated (continuous submersion)
- Operation Temp
- – 20 to 50 °C (- 4 to 122 °F)
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