Solinst Model 102 P10 Water Level Meter
The Solinst Model 102 P10 Water Level Meter is a portable instrument for manually measuring depth to water in wells, boreholes, and monitoring points. It combines a 10 mm stainless steel P10 probe with flexible, laser-marked coaxial cable. An audible buzzer and indicator light signal when the probe contacts water, allowing the operator to read the depth at an established measurement reference point.
Activated Carbon Depot offers imperial N2 configurations from 100 to 1,000 feet and metric N3 configurations from 30 to 300 meters. Select your required cable length and units from the product options above.
P10 Probe and Flexible Weight Assembly
The P10 probe has a stainless steel body and ten segmented stainless steel weights. The flexible weight assembly helps the cable hang straight and supports access where installed equipment limits clearance.
- Probe diameter: 10 mm (3/8 in.)
- Probe body length: 70 mm (2.75 in.)
- Weight with the weight assembly: approximately 174 g (6.14 oz.)
- Recessed probe tip designed to minimize false signals in cascading water
Confirm clearance for the probe and weight assembly before deployment. The narrow cable and flexible assembly may help with access around equipment, but they do not guarantee passage through every restriction. Do not force the probe past an obstruction.
Laser-Marked Coaxial Cable
The Model 102 uses narrow coaxial cable with a durable polyurethane jacket. A braided copper outer conductor provides flexibility, while a stranded stainless steel central conductor provides strength. The cable can be repaired or spliced according to the applicable Solinst instructions.
Imperial N2 configurations have permanent laser markings every 1/100 ft., while metric N3 configurations are marked every millimeter. These graduations describe the spacing of the cable markings and should not be interpreted as a separate guarantee of overall measurement accuracy under every field condition.
How the Solinst 102 P10 Works
Lower the probe until contact with water completes the detection circuit and activates the buzzer and indicator light. Read the cable at your established reference point to determine depth to water.
Adjustable sensitivity helps obtain a clear signal in different water conductivity conditions. Follow Solinst’s operating instructions for sensitivity adjustment, use of the cable guide, and any required measurement correction.
Choosing Your Cable Length and Units
Choose a cable long enough to reach the deepest expected water level, allowing for anticipated water-level changes. Select imperial or metric markings to match your reporting requirements.
This listing is for the P10 probe configuration. Other Model 102 probe options have different dimensions and operating considerations. Confirm the exact model, probe, cable length, units, and part number when ordering a meter or replacement equipment.
Applications and Measurement Limitations
The Solinst 102 P10 is suitable for routine groundwater monitoring and manual depth-to-water measurements where a narrow cable and flexible probe assembly are useful. Check the available opening and clearance around pumps, tubing, and other installed equipment before selecting the instrument.
The 102 P10 does not automatically record readings over time or measure water temperature, conductivity, or oil-water interfaces. Cable length and allowable probe submergence are separate specifications; follow the operating limits for your configuration.
Solinst 102 P10 Technical Specifications
| Specification | Details |
|---|---|
| Manufacturer | Solinst |
| Model and Probe | Model 102 Water Level Meter with P10 probe |
| Primary Measurement | Manual depth-to-water measurement |
| Cable Construction | Narrow coaxial cable with a polyurethane jacket |
| Imperial Cable Designation | N2 — permanent laser markings every 1/100 ft. |
| Metric Cable Designation | N3 — permanent laser markings every millimeter |
| P10 Probe Diameter | 10 mm (3/8 in.) |
| P10 Probe Body Length | 70 mm (2.75 in.) |
| Probe Weight with Weight Assembly | Approximately 174 g (6.14 oz.) |
| Weight Assembly | Ten segmented stainless steel weights |
| Water Detection | Audible buzzer and indicator light signal contact with water |
| Sensitivity Control | Adjustable for different water conductivity conditions |
| Power Source | 9V battery |
| Data Recording | Manual readings; no automatic data logging |
Cable graduations indicate the spacing of the markings. Cable length should not be interpreted as allowable probe submergence depth. Follow the operating instructions for your selected configuration.
Laser-Marked Cable Accuracy and NIST Traceability
Solinst’s Certificate of Accuracy for Models 102 and 102M states that the meters are traceable to national standards. The reference standard used by Solinst was verified by the NIST Metrology Laboratory, under NIST Test No. 821/278129-09.
The certificate states that Model 102 cable markings have an accuracy of at least 0.03% and meet or exceed the tolerances of Accuracy Class III under EU Measurement Instruments Directive 2004/22/EC, as referenced in the document.
This statement concerns cable marking accuracy and measurement traceability. It is distinct from the spacing of the markings—every 1/100 ft. or millimeter—and does not establish overall measurement accuracy under every field condition.
See the Solinst 102/102M Certificate of Accuracy in the PDF downloads section below for the manufacturer’s statement, dated February 3, 2020.
Available Solinst 102 P10 Configurations
Select the required cable length and units from the product options above. Imperial N2 and metric N3 cables are separate configurations. Prices and availability are shown for the selected option.
Imperial N2 Configurations
| Cable Length | Cable Designation | Part Number |
|---|---|---|
| 100 ft. | N2 | 114867 |
| 200 ft. | N2 | 114870 |
| 300 ft. | N2 | 114873 |
| 500 ft. | N2 | 114876 |
| 750 ft. | N2 | 114879 |
| 1,000 ft. | N2 | 114882 |
Metric N3 Configurations
| Cable Length | Cable Designation | Part Number |
|---|---|---|
| 30 m | N3 | 114885 |
| 60 m | N3 | 114888 |
| 100 m | N3 | 114891 |
| 150 m | N3 | 114894 |
| 250 m | N3 | 114897 |
| 300 m | N3 | 114900 |
Before Ordering Your Solinst 102 P10
- Confirm the deepest expected water level and allow for anticipated changes.
- Select imperial N2 or metric N3 markings to match your reporting requirements.
- Confirm clearance for the 10 mm P10 probe and its segmented weight assembly.
- Check access around installed pumps, tubing, and other equipment.
- For replacement equipment, confirm the meter generation, probe, cable designation, length, units, and part number.
Is the Solinst 102 P10 Right for Your Project?
Choose the Solinst 102 P10 when you need manual depth-to-water measurements using a narrow coaxial cable and a 10 mm P10 probe. Its flexible, segmented weight assembly may help with access around installed equipment while keeping the cable hanging straight.
Confirm clearance for the probe and weight assembly before ordering. A narrow cable does not guarantee passage through every restriction or obstruction.
| Model | When to Consider It |
|---|---|
| Solinst 102 P10 | Manual depth-to-water measurement where a narrow coaxial cable and flexible P10 weight assembly suit the available access. |
| Solinst 101 P2 Water Level Meter | Routine manual water level measurements when you prefer laser-marked polyethylene flat tape and have sufficient probe clearance. |
| Solinst 101 P7 Water Level Meter | Manual water level measurement with PVDF flat tape and a pressure-resistant, submersible P7 probe. Compare this model when deeper probe submergence is required. |
| Solinst 101D Water Level DrawDown Meter | Projects requiring both water-level and drawdown detection modes. |
Choose equipment based on your measurement task, expected depth to water, access restrictions, and applicable operating limits. For unattended readings over time, consider a suitable water level datalogger rather than a manual meter.
What’s Included with the Solinst 102 P10?
Your selected Solinst Model 102 P10 configuration includes:
- Assembled water level meter with reel, P10 probe, segmented weight assembly, and laser-marked coaxial cable in your selected length and units
- 9V battery
- Cable/tape guide
A carrying case is sold separately. Contact Activated Carbon Depot for help selecting a case compatible with your meter’s reel size.
Solinst 102 P10 Frequently Asked Questions
The Solinst 102 P10 measures depth to water manually in wells, boreholes, and monitoring points. A buzzer and indicator light signal when the probe contacts water. The operator then reads the cable at an established measurement reference point.
The 102 P10 uses narrow coaxial cable with a polyurethane jacket and permanent laser markings. It does not use the flat tape found on Solinst 101 P2 and P7 meters.
N2 configurations use imperial cable markings every 1/100 ft. N3 configurations use metric markings every millimeter. Select the units that match your field reporting requirements.
Imperial configurations are listed in 100, 200, 300, 500, 750, and 1,000 ft. lengths. Metric configurations are listed in 30, 60, 100, 150, 250, and 300 m lengths. Check the selected product option for its price and availability.
Your purchase includes the assembled meter with reel, P10 probe, segmented weight assembly, and laser-marked coaxial cable in your selected length and units, plus a 9V battery and cable/tape guide.
No. A carrying case is sold separately. Contact Activated Carbon Depot for help selecting a case compatible with your meter’s reel size.
The P10 probe body is 10 mm in diameter and 70 mm long. It has ten segmented stainless steel weights, with a combined probe and weight-assembly weight of approximately 174 g. The probe body length does not represent the full assembly length.
Its narrow cable and flexible weight assembly may help with access around installed equipment. However, clearance depends on the well opening, probe dimensions, and obstructions. Confirm access before deployment and never force the probe past a restriction.
Choose a cable long enough to reach the deepest expected water level from your measurement reference point, allowing for anticipated water-level changes. Cable length and allowable probe submergence are separate specifications.
The 102 P10 uses narrow coaxial cable and a 10 mm P10 probe with segmented weights. The 101 P7 uses PVDF flat tape and a pressure-resistant, submersible P7 probe. Compare access requirements, cable or tape preferences, and probe operating limits when selecting a meter.
The recessed probe tip helps minimize false signals from cascading water. Adjustable sensitivity also helps the operator obtain a clear signal. Follow Solinst’s operating instructions when taking measurements under these conditions.
No. The 102 P10 is a manual water level meter. For unattended measurements over time, choose a suitable water level datalogger.
No. It measures depth to water. Consider the Solinst 201 for water level and temperature measurements, or the Solinst 107 TLC when conductivity measurements are also required.
Confirm your meter generation, probe, cable designation, length, units, and part number before ordering. Older Model 102 meters may have different connections or replacement requirements. Contact Activated Carbon Depot with your instrument details for help identifying compatible parts.
Ways to Contact Us
Activated Carbon Depot
Email: sales@activatedcarbondepot.com
Phone: 949-229-2587




