LevelSCOUT Submersible Level and Temperature Smart Sensor

Low Cost and Effective Level and Temperature Sensor With Integrated Datalogger Ideal For Site Assessments, Tidal Studies and More. 

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  • Overview
  • Features
  • Specifications
  • Applications
  • Support
The INW 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 INW Smart Sensor family. Its compatibility with INW’s Wireless Data Collection technology makes it ideal for remote monitoring.
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, acetal, and Viton®, 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 Barometric Compensation Utility to adjust the LevelSCOUT readings for current atmospheric pressure.
A 1/2 AA 3.6v lithium battery powers the LevelSCOUT. The unit is programmed using INW’s easy-to-use Aqua4Plus Lite or Aqua4Plus control software. Once programmed the unit will measure and collect data at the time interval programmed. While most will use the LevelSCOUT with INW’s Aqua4Plus Lite or Aqua4Plus 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 systems and databases. 
  • Measures/Records level and temperature
  • Low power — 4.5 year battery life
  • Modbus® RTU (RS485)
  • ± 0.05% FS accuracy
  • Small diameter — 0.875” (2.22 cm)
  • 50,000 record non-volatile memory
  • Wireless connectivity
  • Barometric compensation utility
  • Free, easy-to-use software

Sensor Features

  • Measures level, temperature, and time
  • Thermally compensated—great where water temperatures vary, such as in streams or industrial tank applications
  • ± 0.05% FS
  • Low power—4.5 year battery life
  • 316 stainless steel, fluoropolymer, and acetal construction (titanium optional)
  • Modbus® RTU protocol—for great flexibility
Datalogger Features
  • Non-volatile memory—your data will not be lost in the event of a power failure
  • Pause logging feature—temporarily pause the logging while repositioning or transporting sensor
  • Delayed start feature—state a specific future start time, making it easy to set several sensors to start at the same time
Cabling and Networking Features
  • Wireless connectivity
  • RS485 network—allows several sensors to be networked together and provides much longer cable leads
  • Field-serviceable connectors—easily remove the connector, route cable through well seals, walls, or conduit, and then replace connector
  • Available cableless or with a user attachable PU or ETFE cable
  • Comes with free Aqua4Plus and Aqua4Plus Lite control software to get you up and running immediately
  • View your data in real-time
  • Easy export to spreadsheets and databases
  • Barometric compensation utility
  • Update sensor via firmware while in the field—great for future updates
Length (Cable Version) 16.7cm
Length (Cableless Version) 12.9cm
Diameter 2.22cm
Body Material 316 Stainless Steel
Wetted Materials 316 Stainless Steel, acetal, fluropolymer
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 Rated
Memory 50,000 records
Logging Rate 1 x per second
Software Complimentary Aqua4Plus Lite
File Formats .xls / .csv / .a4d
Internal Battery One 1/2 AA 3.6 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 Celcius, Fahrenheit, Kelvin
Transducer Silicon strain gauge
Transducer Material 316 stainless steel
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
± 0.005 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 3 x FS (for >300 psi2, 1.75 FS)
Burst Pressure  600 psi (approx. 1350 ft or 410m)
¹ Depth range has 15 psi subtracted to give actual depth allowed.
2 Approx. 658 feet or 200 meters


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