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DSM-904 4 in 1 soil tester
This 4 in 1 soil survey instrument can test moisture of soil, PH value, temperature and environment sunlight intensity using a probe with the length of 200mm. The unit can easily display various readings with oversize LCD. The unit also has low battery indication and auto power off function. It is saving time, energy, of high efficiency. The unit assures quality of flowers and grasses planting and garden virescence.
Model: DSM-904/DSM-904L
Fuction( can test)
* Sunlight
* Moisture
* PH value
* Temperature
Product Size: 122mm*63mm*36mm
Packing Color Box
G.W/N.W 7.5/5.5
Size 38X45X27
DSM-904
DSM-904L ( with back ground light)
LOW-¡¢LOW¡¢LOW+¡¢NOR-¡¢NOR¡¢NOR+¡¢HGH-¡¢HGH¡¢HGH+
DRY+¡¢DRY¡¢NOR¡¢WET¡¢WET+
'-9¡æ¡«+50¡æ(16¨H¡«122¨H) (display resolution 1¡æ/1¨H)
One 9V block battery
The unit will be automatically off after 5 minutes disabling.
Soil PH-Moisture Meter
The soil PH is a important factor to limits the crops production and the quality .
This instrumentation is simple and convenient, can directly insert the soil.
Measuring HP range: 3-8%
- Measuring moisture range: 1-8%
- Precision: +1% - Precision: +0.2PH
-Environment Temperature:5-50
SM-60 can insert:6cm
Suitable for the surface test
SM-300can insert:2-30cm
Suitable for the depth test.
SM-901 Soil Moisture Meter 
¡¤ Unit Dimensions: 285*50*35mm
¡¤ Flexrake Soil Testing Moisture Meter with 8" Probe. Use this
reliable, inexpensive device to accurately measure the amount of moisture in the soil around your plants. Long probe allows measurements at different depths.
¡¤ Measuring soil moisture has never been easier! The needle in the meter indicates the precise soil humidity. No electric hookups or batteries are needed. Just push in the probe and read the results. Taking readings at different depths quickly reveals the need for more or less water.
SM-901S Soil PH Meter
¡¤ Unit Dimensions: 285*50*35mm
¡¤ Flexrake Soil Testing PH Meter with 8" Probe. Use this
reliable, inexpensive device to accurately measure the amount of moisture in the soil around your plants. Long probe allows measurements at different depths.
¡¤ Measuring soil moisture has never been easier! The needle in the meter indicates the precise soil humidity. No electric hookups or batteries are needed. Just push in the probe and read the results. Taking readings at different depths quickly reveals the need for more or less water.
SM-902 Soil PH & Moisture Meter 
¡¤ Unit Dimensions: 285*50*35mm
¡¤ Flexrake Soil Testing PH & Moisture Meter with 8" Probe. Use this reliable, inexpensive device to accurately measure the PH and amount of moisture in the soil around your plants. Long probe allows measurements at different depths.
¡¤ Measuring soil PH & moisture has never been easier! No electric hookups or batteries are needed. Just push in the probe and read the results. Taking readings at different depths quickly.
SM-903 Soil Meter with Mosit, Light & PH
¡¤ Unit Dimensions: 285*50*35mm
¡¤ Flexrake Soil Testing Moisture Meter with 8" Probe. Use this reliable, inexpensive device to accurately measure the Light, PH and the amount of moisture in the soil around your plants. Long probe allows measurements at different depths.
¡¤ Measuring soil Light, PH & Moisture has never been easier! The needle in the meter indicates the precise light, PH & soil humidity. No electric hookups or batteries are needed. Just push in the probe and read the results. Taking readings at different depths quickly reveals the need for more or less light, PH & water
SM-905 Soil Salt Meter
SOLUBLE SALTS 
----The main ingredients of most fertilizers are nitrogen, phosphorus, and potassium. Together, these and other additives intended to enrich the soil may be called SOLUBLE SALTS. These elements are "carried" in the fertilizer compounds. For example: The potassium carriers are usually potassium sulphate or potassium chloride. The nitrogen is usually sodium nitrate. The phosphate is contained in the compound calcium phosphate.
Fertilizers are often spread in a granular and water soluble form. No matter what fertilizer method is used and whether applied lovingly to a single indoor house plant, or on your lawn, or used professionally in greenhouses and nurseries, or spread over wide acreage in farming, this fact exists:
Fertilizer applied that isn't readily absorbed by the soil. or absorbed by the plant, will tend to build up and, unless you take action you will kill your plants! At the minimum, the danger is reduced growth and yield.
This SOIL SALTS METER can help. With it, you can measure the soluble salts concentration to determine if your current fertilizer practices are creating a danger to your plants. The criteria separating the "SAFE" from the "DANGER" zone is a generally accepted level agreed to by a group of scientists in a midwestern Agricultural Experiment Station. The level is approximately 150 mhos x 10-5 (or 1.5 mhos x 10-3).
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