Chlorophyll is the green pigment found in all green plants and is essential for photosynthesis.

Efficient use of nitrogen (N) fertilizer is important to economical agriculture   production and to the quality of ground and surface waters. The chlorophyll meter is a good way to testing for N.

Specification:

-Precision: ≤±1.0 SPAD

-Repeat:≤±5.0 SPAD
-Temperature of testing :0℃ to 50℃

-Storage range :-22 to 50℃

-time for testing:< 2s       

-testing area: Diameter  ≤3mm

-Stored datum:  30 Groups