Our most compact, yet incredibly precise portable CO� meter H-S1 aids in the environmental control of your grow room, by helping with temperature regulation and carbon controls. The HS-1 CO� Meter is ideal to measure the CO� value and temperature in an indoor grow, a hydroponics/aquaponics urban garden, greenhouse or in certain scientific and educational applications.
The HS-1 CO� Meter also features a simple calibration function and a clear audible CO� alarm that gives a warning when the set alarm value is reached. The HS-1 takes a measurement every second.
Thanks to the backlight of the LCD display it is possible to measure the CO� value and temperature in low-light conditions.

Key Features
Useable in any room.
Extremely accurate non-dispersive infrared (ndir) carbon dioxide sensor by SenseAir�.
The HS-1 measures the CO� value and temperature.
Takes a measurement every second.
Backlight for working in dark areas.
CO� warning alarm.
Calibration function for CO� in fresh.
Battery powered (4 x AA) for complete portability.
Includes batteries and instruction manual.
Includes a convenient storage case.