3001 Levelogger 5 Junior
3001 Levelogger 5 Junior

For important projects with a tight budget, Levelogger 5 Junior provides a cost-effective solution for continuous water level and temperature measurement. It is simple to program with user-friendly software, and easy to deploy with Direct Read Cables or wireline/Kevlar cord and the Levelogger Locking Well Cap. It features a Hastelloy pressure sensor, battery that lasts up to 5 years, and memory for 75,000 sets of readings. Accuracy is 0.1% FS with lifetime calibration. Levelogger 5 Junior is SDI-12 compatible, as is the higher accuracy Levelogger 5.
High Accuracy; Long Battery Life

The Levelogger 5 features a Hastelloy pressure sensor with 0.05% FS accuracy, 10-year battery, schedule sampling and memory for up to 150,000 sets of readings. A PFAS-free PTFE coating protects (inside and out) against corrosion, ideal for saltwater intrusion investigations.
Measure Water Level & Drawdown

- 4 mm (0.157″) or 10 mm (3/8″) diameter stainless steel probes
- Segmented weights for flexibility
- LED Light and loud buzzer indicates water level
- Adjust sensitivity to suit your application

Versatile Submersible Water Level Transmitter
The 301 Water Level Temperature Sensor provides the option of highly accurate water level transmission using multiple protocols – MODBUS and SDI-12 – for a wide variety of applications. This compact, all-in-one submersible hydrostatic level transmitter provides continuous, stable water level and temperature readings, with options for absolute and gauged pressure sensors.

Discover Anywhere Monitoring
SolSat 5 is a telemetry system that leverages Iridium satellite technology to provide global connectivity for Solinst 5 Series dataloggers. It uses low cost TextAnywhere global satellite messaging to send remote data to a secure web portal. It features a robust weatherproof enclosure for installation almost anywhere. Features built-in Wi-Fi setup app, solar panel, and barometer. ror and complication involved with analog-to-digital conversion devices
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The Levelogger 5 Junior provides an inexpensive alternative for measuring groundwater and surface water levels and temperature. The Levelogger 5 Junior combines a pressure sensor, temperature detector, a datalogger, and 5-year battery (based on a 1-minute sampling rate) in one compact 22 mm x 160 mm (7/8″ x 6.3″) stainless steel housing.
The Levelogger 5 Junior records absolute pressure using the same durable Hastelloy® pressure sensor as the Levelogger 5. The Hastelloy sensor has excellent performance in harsh environments and can withstand 2 times overpressure without permanent damage.
The Levelogger 5 Junior features a memory with a capacity of 75,000 sets of temperature and water level data points. Readings are linear at a user-defined interval between 0.5 second to 99 hours. Accuracy is 0.1% FS with lifetime factory calibration.
If greater accuracy, more sampling options, or wider depth ranges are required, the Solinst Levelogger 5 has the functionality to suit your application (see Model 3001 Levelogger 5 data sheet). For conductivity datalogging, Solinst also offers the Levelogger 5 LTC (see Model 3001 Levelogger 5 LTC data sheet).
Level Sensor: | Piezoresistive Silicon with Hastelloy Sensor |
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Ranges: | 5,10 m |
Accuracy: | ± 0.1% FS |
Resolution: | 0.02% FS to 0.01% FS |
Units of Measure: | cm, m, ft, psi, kPa, bar, (ºC, ºF) |
Normalization: | Automatic Temp Compensation |
Temp Compensation Range: | 0ºC to 40ºC |
Temperature Sensor: | Platinum Resistance Temperature Detector (RTD) |
Accuracy: | ± 0.1ºC |
Resolution: | 0.1ºC |
Battery Life: | 5 Years (based on 1 reading/minute) |
Operating Temperature: | – 20ºC to 80ºC |
Clock Accuracy (typical): | ± 1 minute/year (- 20ºC to 80ºC) |
Memory Modes: | Continuous or Slate |
Maximum Readings: | 75,000 sets of readings |
Communication: | Optical high-speed: 57,600 bps with USB |
Size: | 22 mm x 160 mm (7/8″ x 6.3″) |
Weight: | 145 grams (5.1 oz) |
Wetted Materials: | 316 Stainless Steel, Delrin®, Viton®, Hastelloy |
Sampling Mode: | Linear, Real Time View, Future Start |
Measurement Rates: | 0.5 sec to 99 hours |
Barometric Compensation: | Data Wizard and Barologger 5 |
LT Models | Full Scale (FS) | Accuracy | Resolution |
---|---|---|---|
M5 | 5 m (16.4 ft.) | ± 0.5 cm, 0.020 ft. | 0.02% FS |
M10 | 10 m (32.8 ft.) | ± 1.0 cm, 0.032 ft. | 0.01% FS |
Features
- Low cost
- Accuracy of 0.1% FS
- Memory for 75,000 data points
- Robust Hastelloy pressure sensor
- Single-eye optical for fast, reliable communication
Operation
Programming the Levelogger 5 Junior is the same as with the Levelogger 5. A Desktop Reader 5, Field Reader 5 or PC Interface Cable connects the Levelogger to a laptop or desktop PC. Levelogger Software automatically detects the type of datalogger that is connected. Programming, downloading, data management and export are intuitive tasks. The Real Time View option allows immediate viewing of live water level and temperature readings, independent of the scheduled programming intervals.
The Levelogger 5 Junior outputs temperature and temperature compensated water level readings. Using the Data Wizard in the Solinst Levelogger Software, you can barometrically compensate multiple Levelogger 5 Junior files simultaneously, with just one Barologger 5 file.
The Levelogger 5 Junior is compatible with Levelogger 5 Series accessories, including the Solinst Levelogger 5 App Interface, DataGrabber 5 data transfer device, SDI-12 Interface Cable, and Solinst Telemetry Systems.
These compact dataloggers are straightforward to deploy. Installation can be with direct read cables, by stainless steel wireline or Kevlar® cord suspension, with the option of using Solinst 2″ Locking Well Caps.
Applications
Tank level measurement
Monitoring water levels in wells and surface water
Pump and slug tests
Reservoir and stormwater runoff management
Watershed and drainage basin monitoring
Stream gauging, lake and wetland monitoring