MicroMax® SRM 100, Soil pH & Resistivity Subsurface Kit
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MicroMax® SRM 100, Soil pH & Resistivity Subsurface Kit

Product Code: 826791-200

Speed groundbed installations by using the SRM100 to spend less time setting up measurement equipment and more time digging. It lets you measure soil resistivity and pH simultaneously in less than 2 minutes and its single-probe configuration eliminates errors due to miscalulations or incorrect probe spacing and depth.

Choose from three probe options

Each SRM100 comes with one or more probes. You can choose to include a short (bell hole) probe, a long (subsurface) probe, or both.

Trust your readings

Digital circuitry allows for repeatable readings with improved accuracy, and the unit's two-line display is easy to read in most light conditions.

Protect your investment

No matter which probe configuration you choose, your SRM100 and probe(s) will be housed in a crush-proof, water-resistant case for protection from the elements.
USD $1,500.00 /EACH
  • Quantity Available: 0
  • Availability: Temporarily Out of Stock

SRM100 Soil Resistivity and pH Meter

Dimensions 7.5 x 4.75 x 2.25 in.
Weight 2.5 lbs. without probe(s)
Construction /
Environmental Protection

ABS high-impact plastic, corrosion proof, sealed to NEMA4/IP64
Resistivity Range
0 to 1.5M ohm-cm
Resistivity Accuracy
± 5% of the reading
pH Range
3 to 10 standard units
pH Accuracy
± 0.5 standard units
Display Liquid crystal, 2 lines of 16 characters
Switches NEMA4/IP64 sealed toggle switches
Power Supply
4 AA alkaline batteries (provide approximately 100 hours of continuous operation)
Ambient Operating
Temperature / Humidity

-15 to 60° C, 0 to 100% non-condensing


Long (Subsurface) Probe
T-handle 40 inches by 5/8-inch diameter shaft of carbon steel construction with ¾-inch diameter measurement sensor for pH and resistivity; probe with cradle for direct connection to soil meter

Protective Case

Watertight, crush proof, and dust proof with easy-open, double-throw latches, open-cell core with solid-wall design, O-ring seal, fold-down handles, stainless steel hardware and padlock protectors
Outside Dimensions 53 x 16 x 6 ¼ inches
Lid and Back
Double-walled construction for added crush resistance
20 pounds without soil probe meter, bell hole probe, subsurface probe and accessories
Inside Case
Fitted with 2.2 lb. density polyethylene foam | Foam insert is molded to fit the soil probe meter, bell hole and subsurface probes, maintenance kit and soil probe meter manual