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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
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
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:166 grams (5.6 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 ModelsFull Scale (FS)AccuracyResolution
M55 m (16.4 ft.)± 0.6 cm, 0.020 ft.0.02% FS
M1010 m (32.8 ft.)± 1.0 cm, 0.032 ft.0.01% FS


• Low cost
• Accuracy of 0.1% FS
• Memory for 75,000 data points
• Robust Hastelloy pressure sensor
• Single-eye optical for fast, reliable communication


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.


• 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
• Tank level measurement

Levelogger Comparison

Model 3001
solinst levelogger 5 water level dataloggers
solinst levelogger 5 junior water level dataloggers
 Levelogger 5Levelogger 5 Junior
Warranty3 Years1 Years
Pressure TransducerPiezoresistive Silicon with Hastelloy SensorPiezoresistive Silicon with Hastelloy Sensor
Calibrated Ranges5, 10, 20, 30, 100, 200 m, Atm. Barologger5, 10 m
Accuracy± 0.05% FS (Barologger 5 ±0.05 kPa)± 0.1% FS
Resolution0.002% FS to 0.0006% FS0.02% FS to 0.01% FS
NormalizationAutomatic Temperature CompensationAutomatic Temperature Compensation
CalibrationFactory – Lifetime calibrationFactory – Lifetime calibration
Response Time (90% Thermal Δ)1 minute/10ºC change1 minute/1ºC change
Temp Comp Range0 to +50°C (Barologger 5 -10 to +50ºC)0 to +40°C
Over-pressure Range2 X2 X
Temperature SensorPlatinum Resistance Temperature Detector (RTD)Platinum Resistance Temperature Detector (RTD)
Temperature Accuracy± 0.05°C± 0.1°C
Temperature Resolution0.003°C0.1°C
Operating Temp Range-20 to +80°C-20 to +80°C
Clock Accuracy (typical)± 1 minute / year (-20ºC - +80ºC)± 1 minute / year (-20ºC - +80ºC)
Battery Life10 Years (based on 1 reading/min)5 Years (based on 1 reading/min)
Size22 mm x 160 mm (7/8" x 6.3")22 mm x 160 mm (7/8" x 6.3")
Weight166 grams (5.6 oz)166 grams (5.6 oz)
Memory150,000 sets of readings75,000 sets of readings
Communication Speed57,600 bps with USB57,600 bps with USB
Com InterfaceOptical high-speed: USB, SDI-12Optical high-speed: USB, SDI-12
Memory ModesContinuous or SlateContinuous or Slate
Logging Rates0.125 sec to 99 hours0.5 sec to 99 hours
Logging ModesLinear, Event & User-Selectable Schedules with Repeat Mode, Future Start, Future Stop, Real Time ViewLinear, Real Time View, Future Start
Barometric CompensationData Wizard and Barologger 5Data Wizard and Barologger 5
Corrosion ResistanceBaked-on coating using polymerization technology (inside and out) and Hastelloy Sensor316 L Stainless Steel and Hastelloy Sensor
Wetted MaterialsDelrin, Viton, Hastelloy, 316L Stainless Steel, PFASfree PTFEDelrin, Viton, Hastelloy, 316L Stainless Steel

Levelogger 5 App Interface

A smart alternative for programming, data collection, viewing and sharing, is the Levelogger 5 App Interface that uses Bluetooth® wireless technology to connect all Levelogger Series products to your smart device running the Solinst Levelogger App (see Model 3001 Solinst Levelogger 5 App data sheet).


solinst levelogger app and interface



Model Item Quantity Unit Price Line Total
Default Title - Levelogger 5 Junior Default Title - Levelogger 5 Junior
$ 0.00
$ 0.00

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