Measure the alcohol content in the air

Describe the EKG curves 

Measure the heart rate

Record the breathe time per minute

Measure the respiration rate under different conditions

Measure the pH value of solution

Characteristic of quick response

Measure the conductivity of solution

With build-in luminous tube and receiver.

can distinguish the light transmittance of 3 kinds of colors.

light transmittance can be converted absorbency.

Assorted with a cuvette.

NTU means the nephelometric turbidity unit

1NTU means the cloudiness or haziness caused by putting 1mg SiO₂ into 1L of water

Measure the SO₂ content in the air

Used to measure the NH₄⁺ concentration in solution.

Used to measure the K^﹢ concentration in the solution.

Used to measure the NO₃¯ concentration in solution.

Used to measure Cl¯ concentration in solution.

Used to measure the NO₂ content in gas.

Used to measure CO content in gas.

Used to measure CH₄ content in gas.

Measure H₂ content in air.

Measure NH₃ content in gas.

Used to test Cl₂ content in gas.