Seametrics LevelSCOUT Submersible Level/Temperature Smart Sensor


The Seametrics LevelSCOUT Smart Sensor is an integrated datalogger and level/temperature sensor and is ideal for site assessments, tidal studies, environmental monitoring, surface water discharge measurement, and aquifer level monitoring, as well as aquifer storage and recovery. This sensor networks with all of the Seametrics Smart Sensor family.

This industry standard digital RS485 interface device records up to 50,000 records of level, temperature, and time data, operates with low power, and features easy-to-use software with powerful features. Constructed with 316 stainless steel or grade 2 titanium, acetal, and fluoropolymer, this sensor provides high-accuracy readings in rugged and corrosive field conditions.

The LevelSCOUT is an absolute sensor, requiring no vent tubes, desiccant, or bellows. It can be paired with a BaroSCOUT barometric sensor and used with the Aqua4Plus 2.0 Barometric Compensation Utility to adjust the LevelSCOUT readings for current atmospheric pressure.

A replaceable 1/2 AA 3.6v lithium battery powers the LevelSCOUT. The unit is programmed using our easy-to-use control software. Once programmed the unit will measure and collect data at the time interval set.

While most will use the LevelSCOUT with Seametrics’ Aqua4Plus 2.0 software, it is by no means limited to that software. You can use your own Modbus® RTU software or logging equipment to read measurements via RS485, tying into your existing telemetry and control systems.


  • Measures/Records level and temperature
  • Low power — 4.5 year battery life
  • Replaceable battery
  • Modbus® RTU (RS485)
  • ± 0.05% FS accuracy
  • Small diameter — 0.875” (2.22 cm)
  • 50,000 record non-volatile memory
  • Barometric compensation utility
  • Free, easy-to-use Aqua4Plus 2.0, our new upgraded software


  • Site assessments
  • Tidal studies
  • Environmental monitoring
  • Surface water — discharge monitoring
  • Aquifer level monitoringAquifer storage & recovery


Length (cabled version) 6.6” (16.7 cm)
Length (cableless version) 5.1” (12.9 cm)
Diameter 0.875” (2.22 cm)
Body Material 316 stainless steel or grade 2 titanium
Wetted Materials 316 stainless steel or grade 2 titanium, acetal, fluoropolymer
Communication RS485 Modbus® RTU
Direct Modbus Read Output 32-bit IEEE floating point
Internal Math 32-bit floating point
Operating Temp. Range -20° C to 60° C
Storage Temp. Range -40° C to 80° C
Regulatory CE
Memory 50,000 records
Logging Rate 1x per second
Software Complimentary Aqua4Plus 2.0
File Formats csv / .a4d
Internal Battery One replaceable 1/2 AA 3.6V lithium battery
Expected Battery Life 4.5 years (depending on use)
Element Type Thermistor
Accuracy ± 0.1° C(from -20° C to 60° C)
Resolution 0.01° C
Units Celsius, Fahrenheit, Kelvin
Pressure (Level)
Transducer Type Silicon strain gauge
Transducer Material 316 stainless steel or Hastelloy® C276
Ranges Absolute1
PSI : 30, 50, 100, 300
FtH2O  : 35, 81, 196, 658
mH2O  : 10, 24, 59, 200
Units PSI, FtH2O, inH2O, cmH2O, mmH2O, mH2O, inHg, cmHg, mmHg, Bars, mBars, kPa
Accuracy ± 0.05% FS (@ 20° C)
± 0.10% FS (0° C to 40° C)
Resolution 0.0034% FS (typical)
Maximum Operating Pressure 1.1 x FS
Over Range Protection 3x FS (for >300 psi2, 1.75 FS)
Burst Pressure 600 psi (approx. 1350 ft or 410 m)
¹ Depth range has 15 psi subtracted to give actual depth allowed. 2 Approx. 658 feet or 200 meters