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September 20, 2021
  All Categories  >  Soil Testing/Geo/Environmental  >  Moisture Meters
  Product Information
Kelway Soil pH and Moisture Meter
Model: STMM-5
Price: $129.00
Condition: New
Availability: Usually ships in 24 hours
   Product Model # Price   Sale Price Qty
 Kelway Soil pH and Moisture Meter   STMM-5   $129.00      
  The Kelway Soil pH and Moisture Meter requires no chemical, distilled water, or outside electric power source. A sensitive electrode measures pH values from 3.5 to 8, soil moisture from 0 to 100%. Numerous readings can be easily taken over a large area. pH Accuracy: ±0.2. Moisture accuracy: ±10%. Meter is 6.5" (165mm) long with 1.5" (38mm) diameter dial. Leather-like case with belt loop and full instructions are included.

When inserted into moist soil the Kelway soil meter registers degree of acidity on the upper scale. The lower scale shows degree of moisture (% saturation) when the switch button is held depressed.

Why test for Soil pH?

pH indicates the the degree of acidity or alkalinity of soil.

The nutrients that support growth usually cannot dissolve in very acid or very alkaline soil moisture. If they can't dissolve, they can't be used for growth even if they are present in the soil.

Normal beneficial soil bacteria which promote necessary soil enrichment are unable to survive in very acid or very alkaline soil.

pH is an ongoing and ever changing phenomenon. Most soils drift to the acid condition and need regular evaluation so that they can be controlled and productivity increased.

Why choose a direct reading Soil Tester?

Litmus paper is not accurate enough and is difficult to use and to interpret.

Laboratory glass electrode pH meters require buffer solutions, temperature control, power sources, clean equipment, and are both fragile and expensive.

Soil brought to a laboratory for testing often changes pH en route before it can be tested due to CO2 losses, and you must wait for results.

A direct reading tester goes with you. It is portable, rugged, convenient, operates without a power source and is not overly sensitive to temperature variances.

Made in Japan
  • No power source is needed
  • Tests soil in three (3) minutes
  • Time saving - low cost and handy



  • Net Weight: 8 oz.
  • Shipping Weight: 2 Lbs

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