HOBO MX2501 pH Data Logger


HOBO Data Loggers by Onset

Not in stock. Usually ships in 4 weeks [?]

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  • pH calibration
  • Rugged PVC housing
  • Measuring range:
    • 2 to 12 pH range
    • 28.4 to 122°F (-2 to 50°C)
  • Bluetooth Low Energy (BLE) to iOS devices
  • Water detection system for longer battery life
  • 152 KB memory (43,300 measurements)
  • Waterproof up to 131.2ft (40m)
  • Potentiometric pH electrode

What's in the Box

  • pH Electrode
  • Storage solution
  • Anti-biofouling copper guard
  • Tube of silicone grease
  • AA battery

The HOBO MX2501 pH and Temperature Data Loggers are designed for long-term monitoring of pH in both freshwater and saltwater environments. The MX2501 features Bluetooth Low Energy® (BLE) technology. The pH Logger communicates wirelessly with the free HOBOmobile® app on iOS devices making logger setup, calibration, and data offload quick and easy. A guided pH calibration process on the HOBOmobile app makes an otherwise complicated process easier to follow. This affordable and compact logger dramatically cuts the time and effort needed to collect field data, while also offering higher resolution in data.

HOBO MX2500 Replacement Electrode
Replacement pH electrode, suited for environmental monitoring of streams, lakes, rivers, estuaries, and oceans
HOBO MX2500 Guard
Anti-Biofouling Copper Guard can be used in addition to the standard electrode guard
HOBO MX2500 End Cap
Replaces the original sensor end cap that ships with the HOBO MX pH Logger
HOBO MX2500 Calibration Beaker
4 oz calibration beaker can be used to calibrate the HOBO MX pH Logger and to store calibration solutions.
HOBO MX2500 pH Calibration Solutions
pH 4.01, 7.00, and 10.00 Calibration Solutions (475 mL bottles) are used to calibrate the pH electrode in the HOBO MX pH Logger.
HOBO MX2500 Electrode Storage Solution
Used to properly store and condition the pH electrode that is used with the HOBO MX pH Logger
HOBO MX2500 Calibration Kit
The Calibration Kit includes pH 4.01, pH 7.00, pH 10.00 buffer solutions (475 mL bottles), and the 4 oz. calibration beaker
HOBO MX2500 Maintenance Kit
The Maintenance Kit includes the Calibration Kit (MX2500-CAL-KIT) and Storage Solution (MX2500-STORE-SOLN)
HOBO Compliance Certificate
Compliance certificate states that the individual data logger is in compliance with its specification as described in its product manual
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HOBO MX Gateway
Automatically transmits HOBO MX Bluetooth Low Energy (BLE) logger data to cloud-based HOBOlink software
In Stock