TechGrow HS-1 and HS-2 Portable Handheld CO2 Meters are ideal for measuring CO2 value, temperature and humidity in an indoor grow, a hydroponics/aquaponics urban garden, greenhouse or in certain scientific and educational applications.
The HS-1 CO2 Meter also features a simple calibration function and a clear audible CO2 alarm that gives a warning when the set alarm value is reached, it also takes a measurement every second.
Measurements from the HS-2 are kept accurate with the calibration function that can be used in fresh air, making it a truly handheld CO2 meter.
Useable in any room.
Extremely accurate non-dispersive infrared (ndir) carbon dioxide sensor by SenseAir®.
The HS-1 measures the CO2 value and temperature / HS-2 measures the CO2 value temperature and humidity.
Takes a measurement every second.
Backlight for working in dark areas.
CO2 warning alarm.
Calibration function for CO2 in fresh.
Battery powered (4 x AA) for complete portability.
Includes batteries and instruction manual.
Includes a convenient storage case.
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