How to use it:

Measured soil ph value, the first button to the ph, the probe as deep as possible into the soil, the probe above the part left about 1 centimeters, the pointer corresponds to the ph value.

Toggle the keys on the pen to the fertility,  also corresponds to three stalls: fertility is not enough to fertilize; The insufficient fertility of white line segment requires fertilization   Green Line fertility just in the red section.

When using the attention of inserting electrodes can not touch the stone, do not force too hard, after using the electrode scrub clean.

How to analyze soil fertility  
1. Remove the topsoil about 5 centimeters first, then mash the soil down to 13 centimeters deep. and clean up all the organic impurities in the soil that affect the test results, such as leaves, roots, etc.  
2. Saturate the soil with water and form a muddy shape. (preferably with rainwater or distilled water).  
3. Wipe the stick clean with a cleaning cotton or paper towel.  
4. Dial the function key to the first stall on the left.  
5. Insert the rods into the soil under test until the soil is not more than 2.5 centimeters away from the fuselage. Wait up to 10 seconds for the pointer to be stabilized to read the data.  
6. Record data. Remove the rods from the soil and thoroughly clean the rods.  
The criteria for judging the results of the analysis are as follows  
Lack of (TOO LITTLE)  
Nitrogen less than ppm 
Phosphorus less than 4 ppm 
Potassium less than ppm 
Ideal Range (IDEAL)  
$number ppm 
4-14 ppm 
$number ppm 
Excess (TOO much)  
Greater than ppm 
Greater than ppm 
Greater than ppm 
· Unit ppm: million  
If the analysis results show "TOO LITTLE" meaning: lack of  
Use the appropriate liquid fertilizer for your plant to replenish your crops with the different plants you plant. (Specific reference to the chemical fertilizer packaging bag description)  
If the analysis results show "IDEAL" meaning: Ideal  
According to the different plants you plant, use suitable fertilizers and apply them to irrigation once a month.  
If the analysis results show "TOO much" means: excessive  
1. A large number of watering, dilute the excessive leaching of nutrients; 
2. For potted plants, they should be transplanted to new soil for; 
3. Do not apply any chemical fertilizers, but you can add manure, compost, plant residues, leaves and other organic substances to the soil.  

How to analyze the ph value of soil  
1. Remove the topsoil of the measured soil about 5 centimeters, and then mash the soil down to 13 centimeters deep. and clean up all the organic impurities in the soil that affect the test results, such as leaves, roots, etc.  
2. Saturate the soil with water and form a muddy shape. (preferably with rainwater or distilled water)  
3. Dial the function key to the rightmost position.  
4. Moist probe stick. Clean the right side of the three probes with a cleaning cotton sheet.  
5. Insert the rods into the tested soil completely.  
6. Wait 1 minutes to read the data.  
7. After testing, clean and dry the stick.  

Special Tips

Do not put the stick in the soil for long periods of time, and do not use this device to test liquids to avoid damage.