Solinst Model 101 P2 Water Level Meter
The Solinst Model 101 P2 Water Level Meter is a portable instrument for manually measuring depth to water in wells, boreholes, standpipes, and tanks. It combines a stainless steel P2 probe with laser-marked polyethylene flat tape mounted on a reel. An audible buzzer and indicator light signal contact with water, allowing the operator to read the depth at an established measurement reference point.
Activated Carbon Depot offers imperial LM6 configurations from 100 to 1,000 feet and metric LM7 configurations from 30 to 300 meters. Select the required tape length and measurement units from the product options above.
Laser-Marked Polyethylene Flat Tape
The configurations listed on this page use 3/8 in. (10 mm) polyethylene flat tape with permanent laser markings. LM6 tapes have imperial graduations every 1/100 ft., while LM7 tapes have metric graduations every millimeter.
The flexible tape is designed to reel smoothly and hang straight during measurements. Its dog-bone profile helps reduce adherence to wet surfaces. The tape incorporates stainless steel and copper-coated steel conductors for strength and electrical continuity.
Tape graduations describe the spacing of the markings. They should not be interpreted as a separate guarantee of overall measurement accuracy under every field condition.
P2 Water Level Probe
The P2 probe provides water detection for routine manual depth-to-water measurements. Before selecting your meter, confirm that the probe can pass through the well opening and around any installed pumps, tubing, or other equipment.
For work requiring deeper probe submergence, compare the applicable probe ratings and operating instructions with the Solinst Model 101 P7 Water Level Meter. Tape length and allowable probe submergence are different specifications and should be evaluated separately.
How the Solinst 101 P2 Works
Lower the probe until contact with water completes the detection circuit and activates the buzzer and indicator light. Read the tape 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 tape guide, and any required measurement correction.
Choosing Your Tape Length and Units
Select a tape long enough to reach the deepest expected water level, allowing for anticipated changes. Use imperial or metric markings to match your field reporting requirements.
When ordering replacement equipment, confirm your existing model, probe, tape designation, length, and units. Older P2 configurations may differ from the LM6 and LM7 versions listed here.
Applications and Measurement Limitations
The Solinst 101 P2 is suitable for routine groundwater level monitoring, environmental site investigations, hydrogeological studies, and manual measurements in wells, boreholes, standpipes, and tanks.
The meter does not automatically record readings over time or measure water temperature, conductivity, or oil-water interfaces. Choose equipment suited to those measurement requirements when additional parameters or unattended monitoring are needed.
Solinst 101 P2 Technical Specifications
| Specification | Details |
|---|---|
| Manufacturer | Solinst |
| Model and Probe | Model 101 Water Level Meter with P2 probe |
| Primary Measurement | Manual depth-to-water measurement |
| Tape Material | Polyethylene flat tape with permanent laser markings |
| Tape Width | 3/8 in. (10 mm) |
| Imperial Tape Designation | LM6 — feet and tenths, with markings every 1/100 ft. |
| Metric Tape Designation | LM7 — meters and centimeters, with markings every millimeter |
| Imperial Lengths Listed | 100, 200, 300, 500, 750, and 1,000 ft. |
| Metric Lengths Listed | 30, 60, 100, 150, 200, 250, and 300 m |
| 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 |
Tape graduations indicate the spacing of the markings. Tape length identifies the available measuring length and should not be interpreted as the allowable probe submergence depth. Follow the operating instructions for your specific configuration.
Available Solinst 101 P2 Configurations
Select the required length and units from the product options above. Imperial LM6 and metric LM7 tapes are separate configurations. Prices and availability are shown for the selected option.
Imperial LM6 Configurations
| Tape Length | Tape Designation | Part Number |
|---|---|---|
| 100 ft. | LM6 | 117969 |
| 200 ft. | LM6 | 117973 |
| 300 ft. | LM6 | 117977 |
| 500 ft. | LM6 | 117981 |
| 750 ft. | LM6 | 117985 |
| 1,000 ft. | LM6 | 117989 |
Metric LM7 Configurations
| Tape Length | Tape Designation | Part Number |
|---|---|---|
| 30 m | LM7 | 117903 |
| 60 m | LM7 | 117946 |
| 100 m | LM7 | 117939 |
| 150 m | LM7 | 117944 |
| 200 m | LM7 | 117883 |
| 250 m | LM7 | 117949 |
| 300 m | LM7 | 117922 |
What’s Included with the Solinst 101 P2?
Your selected Solinst Model 101 P2 configuration includes:
- Assembled water level meter with reel, P2 probe, and laser-marked polyethylene flat tape in your selected length and units
- 9V battery
- Tape guide
A carrying case is sold separately. Contact Activated Carbon Depot for help selecting a case compatible with your meter’s reel size.
Is the Solinst 101 P2 Right for Your Project?
Choose the Solinst 101 P2 when you need manual depth-to-water measurements with laser-marked polyethylene flat tape. The LM6 imperial and LM7 metric configurations let you select the length and units that match your field reporting requirements.
Before ordering, consider the available well access, expected depth to water, and whether your work requires deeper probe submergence or drawdown detection.
| Model | When to Consider It |
|---|---|
| Solinst 101 P2 | Routine manual depth-to-water measurements using laser-marked polyethylene flat tape. |
| 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 102 P10 Water Level Meter | Depth-to-water measurement where a narrow cable and smaller probe may better suit the available access. |
| Solinst 101D Water Level DrawDown Meter | Projects requiring both water-level and drawdown detection modes. |
The appropriate model depends on your measurement task and installation conditions. Confirm probe clearance and applicable operating limits before selecting equipment. For unattended readings over time, consider a suitable water level datalogger rather than a manual meter.
Before Ordering Your Solinst 101 P2
- Confirm the deepest expected depth to water and allow for anticipated water-level changes.
- Select imperial LM6 or metric LM7 markings to match your reporting requirements.
- Check probe clearance around pumps, tubing, and other equipment.
- For replacement equipment, confirm the model, tape designation, length, units, and part number.
Need help selecting a configuration? Call Activated Carbon Depot at 949-229-2587 or use our contact form.
Solinst 101 P2 Frequently Asked Questions
The Solinst 101 P2 measures depth to water manually in wells, boreholes, standpipes, and tanks. A buzzer and indicator light signal when the probe contacts water. The operator then reads the tape at an established measurement reference point.
The configurations sold on this page use laser-marked polyethylene flat tape. Imperial LM6 tapes have markings every 1/100 ft., while metric LM7 tapes have markings every millimeter. Older P2 meters may use different tape configurations.
Imperial configurations are listed in 100, 200, 300, 500, 750, and 1,000 ft. lengths. Metric configurations are listed in 30, 60, 100, 150, 200, 250, and 300 m lengths. Select your required configuration from the product options to check its price and availability.
Choose a tape long enough to reach the deepest expected water level from your measurement reference point, allowing for anticipated water-level changes. Confirm that the probe can pass around any pumps, tubing, or other equipment installed in the well.
The 101 P2 configurations listed here use polyethylene flat tape and a P2 probe. The 101 P7 uses PVDF flat tape and a pressure-resistant, submersible P7 probe. Compare tape materials, probe operating limits, and available lengths when selecting a meter.
Do not assume that tape length equals allowable probe submergence. Follow the operating limits for your specific P2 configuration. For applications requiring deeper probe submergence, compare the Solinst 101 P7 and its applicable operating instructions.
Your purchase includes the assembled meter with reel, P2 probe, and laser-marked polyethylene tape in your selected length and units, plus a 9V battery and 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.
No. The 101 P2 is a manual water level meter. For unattended measurements over time, choose a suitable water level datalogger.
No. The 101 P2 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 model, probe, tape designation, length, units, and reel configuration before ordering. Older P2 meters may differ from the current LM6 and LM7 configurations. Contact Activated Carbon Depot with your instrument details for help identifying the correct part.
Ways to Contact Us
Activated Carbon Depot
Email: sales@activatedcarbondepot.com
Phone: 949-229-2587
