Gastro+ Gastrolyzer

Gastro + is a handheld gastrolyzer which helps to detect GI (gastrointestinal) disorders by measuring the concentration of hydrogen in the breath. It can be used to help diagnose a variety of gastrointestinal disorders such as, fructose intolerance, lactose intolerance, SIBO, IBS, etc. The test works by hydrogen (H2) is produced when bacteria in the intestine acting on undigested carbohydrates such as lactose and fructose in the small or large intestine. The hydrogen diffuses into the blood and transports to the alveoli in the lungs. With a breath test with Gastro+ the amount of hydrogen can then be detected in the breath.


  • Brand new easy to use interface
  • Maintenance reminders
  • 3 months’ calibration interval
  • Create and store patient details
  • Multiple patient testing
  • Built in testing protocols with built in countdown timer
  • Large touch screen
  • SteriTouch® technology to kill off harmful bacteria
  • Comes with Gastro chart software


IncludedGastrolyzer+, 12 D-Pieces, 250 Steribreath Mouthpieces, GastroChart Software, Carrying case, Manual, 3 x facemasks, facemask sampling kit
Concentration Range (H2)0-500ppm
Sensor sensitivity1ppm
DisplayFull colour touchscreen
H2 cross interference<1%
SensorElectrochemical sensor
SizeApprox. 34 x 75 x 140 mm
WeightApprox. 200 grams including batteries
Batteries3 x AA (LR6 or Equivalent)
1 x CR2032 Lithium coin cell
MouthpiecesSteriBreath and D-Pieces
CalibrationEvery third month with 100ppm H2
Warranty2 years for the instrument and 1 year for the sensor
DatasheetGastro+ (PDF)
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