GastroCH4ECK® Gastrolyzer®
Direct sampling
The only breath hydrogen and methane device with direct breath testing allowing you to take a reading there and then, with instant results
Revolutionary Interface
Full-colour touchscreen with an easy-to-use interface and onscreen motivational exhalation guides
Breath bag sampling
Breath test samples can be captured with a breath bag and analysed at a later date or time.

Technical Specification

Concentration range
CH4: 0-200ppm
H2: 0-200ppm
O2: 14-23%

Accuracy
Resolution: 1ppm
Accuracy: ±10% of reading
Repeatability: <5% difference on consecutive readings

Power
Mains power

Operating temperature
15-35ᵒC

Sensor operating life
CH4: 5 years
H2: 2 years
O2: 2 years

Display
Full-colour touchscreen

Accuracy
Resolution: 1ppm
Accuracy: ±10% of reading
Repeatability: <5% difference on consecutive readings

Start-up time
≤2 minutes

Storage/transport temperature
0-40ᵒC

CO cross sensitivity
<4% (H2 only)

Detection principle
Electrochemical sensor (O2 & H2)
Laser (CH4)

Accuracy
Resolution: 0.1%
Accuracy: ±10% of reading
Repeatability: <5% difference on consecutive readings

Response time
≤45 seconds

Operating humidity
912-1114mbar (Atmospheric ±10%)

Calibration frequency
Every 4 weeks
As easy as…



Direct breath test:
Breath bag test:
Literature
Consumables



GastroCH4ECK® mouthpiece:
Specifically designed with the latest moisture removal and bacterial filtration to remove 99.9% of airborne bacteria from the patient’s breath1.
Facemask adaptor
The facemask adaptor is single-patient-use. A facemask is attached to one end and then the sampling system connects to the breath bags.
Moisture removal filter
For use with the breath bag sampling mode. These will last for approximately 150 samples before it needs to be changed.
GastroCH4ECK® breath bags:
Specifically designed to capture as much end-tidal air as possible, with a one-way mouthpiece to prevent loss of sample.
Facemask
Facemasks are single-patient use and
allow the patient to breathe normally
to produce a breath sample. There are
3 sizes: Large, Medium, and Small.
Calibration gas
The GastroCH4ECK® requires
calibration every 4 weeks using 100ppm H2,
100pm CH4, and 20.9% O2, provided as a kit or
replacement cylinder.



References
1. Public Health England. An Evaluation of Filtration Efficiencies Against Bacterial and Viral Aerosol Challenges Report No. 17/001. London: Public Health England; 2017