Onset Computer Corp.

• Measures Conductivity, Salinity, Temperature, Depth or Dissolved Oxygen
• Fully Submersible and Retrieve for Data Offload Using HOBOconnect App
• Wireless Bluetooth Communications for Setup, Configuration and Data Offload
• Guided Calibration for Accurate Data and Water Detect Feature 
• User-Replaceable Lithium Batteries

Requires W-CT Conductivity and Temperature, W-CTD Conductivity, Temperature and Depth or W-DO Dissolved Oxygen Sensor. 

• Measures Conductivity, Salinity, Temperature and Barometric Pressure (Depth)
• Data Logger Remains Above the Water and Cables and Sensors Extend into Fresh or Salt Water
• Wireless Bluetooth Communications for Setup, Configuration and Data Offload Using HOBOconnect App
• Guided Calibration for Accurate Data and Water Detect Feature 
• User-Replaceable Lithium Batteries
• Interchangeable Sensors for Dissolved Oxygen (W-DO) and Conductivity (W-CT)

Requires W-CT Conductivity and Temperature, W-CTD Conductivity, Temperature and Depth or W-DO Dissolved Oxygen Sensor.

• Records Absolute or Barometric Pressure (Water Level) and Temperature in Wet or Water Environments
• 0 to 13 ft, 0 to 30 ft , 0 to 100 ft and 0 to 250ft Water Level Ranges with Stainless Steel or Titanium Housing Options
• Bluetooth (BLE) Communications for Setup and Data Download
• User Replaceable Alkaline Batteries with 1 Year Life (1 Minute Sampling Rate)
• Stores up to 30,000 Measured Readings with Date/Time Stamp

HOBOconnect App Software Available for Download

• Internal Sensors for Temperature Measurements in an Indoor, Outdoor and Underwater Environment
• Wireless Transmission of Recorded Readings to Phone or Tablet Using Bluetooth Smart LE Communications (in Air)
• -20°C to 70°C (Air) or -20°C to 70°C (Water) Measurement Ranges with a +/-0.5°C Accuracy
• Waterproof to 30 Meters (100 ft)
• User-Replaceable Lithium Battery with 1 Year Typical Life (1 Minute Sampling Rate)
• Stores up to 96,000 Measured Readings with Date/Time Stamp if Bluetooth Communications Not Available
• Includes Mounting Boot (BOOT-MX2201-2202)

HOBOconnect App Available on the Apple Store (iOS) and Google Play (Android)

• Internal Sensors for Temperature and Light Measurements in an Indoor, Outdoor and Underwater Environment
• Wireless Transmission of Recorded Readings to Phone or Tablet Using Bluetooth Smart LE Communications (in Air)
• -20°C to 70°C (Air) or -20°C to 50°C (Water) Measurement Ranges with a +/-0.5°C Accuracy
• 0 to 167,731 lux Measurement Range with a +/-10% Accuracy Typical for Direct Sunlight
• Waterproof to 30 Meters (100 ft)
• User-Replaceable Lithium Battery with 1 Year Typical Life (1 Minute Sampling Rate)
• Stores up to 96,000 Measured Readings with Date/Time Stamp if Bluetooth Communications Not Available
• Includes Mounting Boot (BOOT-MX2201-2202)

HOBOconnect App Available on the Apple Store (iOS) and Google Play (Android)

• Internal Sensors for Temperature Measurements in an Indoor, Outdoor and Underwater Environment
• Wireless Transmission of Recorded Readings to Phone or Tablet Using Bluetooth Smart LE Communications in Air
• -20°C to 70°C Measurement Ranges with a +/-0.2°C Accuracy
• Waterproof to 120 Meters (400 ft)
• User-Replaceable Lithium Battery with 3 Year Typical Life (1 Minute Sampling Rate)
• Stores up to 96,000 Measured Readings with Date/Time Stamp if Bluetooth Communications Not Available

HOBOconnect App Available on the Apple Store (iOS) and Google Play (Android)

• Internal and External Sensor for Temperature Measurements in an Outdoor and Underwater Environment
• Wireless Transmission of Recorded Readings to Phone or Tablet Using Bluetooth Smart LE Communications (in Air)
• Internal Sensor Measures Temperatures  in -20°C to 70°C Range
• External Sensor Measures Temperatures in -40C to 100C Range
• Waterproof to 100 Meters (30.5 ft)
• Non-Replaceable Lithium Battery with 3 Year Typical Life (1 Minute Sampling Rate)
• Stores up to 96,000 Measured Readings with Date/Time Stamp if Bluetooth Communications Not Available

HOBOconnect App Available on the Apple Store (iOS) and Google Play (Android)

• Non-contact Sensor Minimizes Drift-Related Measurement Errors
• Features Open Access to Sensor for Cleaning and Software-Based Drift Compensation
• Software Enables Start/End-Point Calibration to Compensate for Fouling and Easy Conversion to Specific Conductance and Salinity
• 0 to 15,000 µS/cm (Conductivity Extended Range) and 0°C to 40°C (Temperature) Measurement Ranges
• 3 Year Battery Life with Factory Replaceable Battery
• Stores at Least 14,400 Sets of Measured Readings
• Requires HOBOware Pro Software (Version 3.2+) and BASE-U-4 Optical Base Station

Designed for Fresh Water Sources. See the Onset U24-002-C for Saltwater Sources