SRM100 Soil Resistivity and pH Meter


SRM100 Soil Resistivity and pH Meter

The SRM100 simultaneously measures soil resistivity and pH in less than two minutes, letting you work faster, improve accuracy and lower your costs.

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Use the SRM100 soil resistivity and pH meter to:

  • Work faster – An SRM100 can curtail the time it takes to complete AC tower pylon inspections, certain ECDA surveys, or other assessments. That's because traditional readings with a four-pin process can take up to 20 minutes each whereas the SRM100 measures soil pH and resistivity simultaneously in less than two minutes.
  • Improve accuracy – The single-probe configuration eliminates errors due to miscalculations or incorrect probe spacing and depth.
  • Lower costs – The SRM100 helps you save on groundbed installations by enabling your crew to spend less time setting up measurement equipment and more time digging.
Feature Benefit
Three probe options Each SRM100 comes with one or more probes. Choose the option that's best for you: a bell hole probe, a subsurface probe, or both.
Protective case 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 in outdoor applications.
Digital circuitry Digital circuitry allows for repeatable readings with improved accuracy.
Self-calibration An internal calibration circuit allows the SRM100 to self-calibrate in the field.
LCD display The two-line display is easy to read in most light conditions.
Accessible batteries The battery is accessible via a door on the back of the unit for easy replacement.
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 degrees Celsius
Bell Hole Probe
T-handle 12 inches by 5/8-inch diameter shaft of carbon steel construction with ¾-inch diameter measurement sensor for pH and resistivity; probe wire with coiled cable for direct connection to soil probe meter
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
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
Dimension: Outside dimension 53 x 16 x 6 ¼ inches
Lid and Back: Double-walled construction for added crush resistance
Weight: 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