• Water Level Recorder

Water Level Recorder

  • Corrosion resistant Hastelloy pressure sensor
  • Titanium ceramic PVD coating
  • 4-electrode platinum conductivity sensor

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The LTC Levelogger Edge logs conductivity, water level and temperature.

It combines a datalogger, 8-year battery, Hastelloy® pressure sensor, temperature detector, and conductivity sensor within a small waterproof housing, 7/8" x 7.5" (22 mm x 190 mm). A Titanium ceramic PVD coating protects the body against corrosion. The conductivity sensor is a 4-electrode platinum sensor, with autoranging capabilities. The minimal maintenance, sealed LTC Levelogger Edge is simple to clean and calibrate, even in the field. Using Levelogger Series Software, it displays conductivity, temperature, and temperature-compensated water level. Memory is non-volatile and stores up to 27,000 sets of readings. See the Model 3001 Edge data sheet for more information on the Levelogger Series of dataloggers, accessories and software.


  • Corrosion resistant Hastelloy pressure sensor
  • Titanium ceramic PVD coating
  • 4-electrode platinum conductivity sensor
  • Single or multi-point conductivity calibration
  • Basic and advanced data compensation options

User-Friendly Operation

Calibration and Data Wizards guide you through the calibration process and barometric compensation, to provide corrected data. Levelogger Software allows you to easily program your preferences, download data, and display data in a graph or table format or export to other programs. The Real Time View option allows immediate viewing of live conductivity, water level and temperature readings. Leveloggers are easy to deploy; installation can be with direct read cables or wireline/cord suspension. The LTC Levelogger Edge is SDI-12 compatible using the Solinst SDI-12 Interface Cable. Data can be downloaded in the field using the DataGrabber™ USB data transfer device, or through Bluetooth® using the Levelogger App Interface device. The LTC Levelogger Edge is also compatible with the 9500 LevelSender telemetry system, designed to send your data wirelessly by email or SMS.


  • Salt water intrusion and soil salination monitoring
  • Plume remediation monitoring and studies
  • Leachate monitoring at landfills, mine tailings, waste disposal storage sites, and more
  • Agricultural and stormwater runoff monitoring
  • Tracer tests

Biofoul Screen

When an LTC Levelogger Edge is deployed for an extended period, there is the risk of biofouling on the pressure sensor and/or conductivity cell, which can compromise their readings. The Biofoul Screen is designed to reduce the unwanted buildup of microorganisms, plants, algae, or organisms such as barnacles and mussels, on the instrument sensors. The Biofoul Screen consists of a Delrin sleeve wrapped with copper wire. It simply slips onto the sensor end of an LTC Levelogger Edge, where it is held in place by compression fit.
Using the natural anti-fouling characteristics of copper, the Biofoul Screen is an affordable option to lengthen the time an LTC Levelogger Edge can be deployed. It reduces site visits and time spent cleaning Leveloggers, and improves long-term performance by ensuring accurate sensor measurements.            

Level SensorPiezoresistive Silicon with Hastelloy Sensor
Ranges5, 10, 20, 30, 100, and 200 m
Accuracy±0.05% FS
Units of Measurecm, m, ft, psi, kPa, bar (ºC, ºF)
NormalizationAutomatic Temperature Compensation
Temp Compensation Range0ºC to 50ºC
Temperature SensorPlatinum Resistance Temperature Detector (RTD)
Conductivity Sensor4-Electrode Platinum
Full Range0 to 100,000 µS/cm
Calibrated Range50 to 80,000 µS/cm
Accuracy±1% > 30,000 µS/cm; ±2% 500 - 30,000 µS/cm; ±30µS < 500 µS/cm
Resolution±0.1 µS/cm
Temp Compensation Range0ºC to 50ºC
NormalizationSpecific Conductance @ 25°C
Battery Life8 Years (1 reading every 5 minutes)
Clock Accuracy±1 minute/year (-20ºC to 80ºC)
Operating Temperature-20ºC to 80ºC
Maximum Readings27,000 sets of readings in FRAM memory
MemorySlate or Continuous
CommunicationOptical Infra-red: USB, RS-232, SDI-12
Size7/8" x 7.5" (22 mm x 190 mm)
Weight7.05 oz. (200 grams)
Corrosion ResistanceTitanium ceramic PVD coating
Wetted MaterialsHastelloy, 316L Stainless Steel, Delrin®, Viton®, Titanium ceramic PVD coating
Sampling ModeLinear, Event & User-Selectable with Repeat Mode, Future Start, Future Stop, Real-Time View
Measurement Rates2 seconds to 99 hours
Barometric CompensationSoftware Wizard and Barologger Edge