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HOBO MX Bluetooth Low Energy PH and Temperature Data Logger


Item# MX2501

In stock

Lead Time ( If not in Stock): 7 weeks

HOBO MX Bluetooth Low Energy pH and Temperature Data Logger MX2501 MX2501
  • Bluetooth Low Energy 100-foot communications
  • Stores: 43,000 measurements
  • Accuracy of ±0.10 pH units within ±10°C of temperature at calibration
  • Multiple Start & Stop options
  • User-replaceable 1- to 3-year battery, pH electrode, and anti-biofouling copper guard
  • Water-detection feature conserves battery life
  • Waterproof to 40 meters (130 feet)
  • Rugged PVC housing for deployment in both freshwater and saltwater environments

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Product Specs

The HOBO MX2501 pH and Temperature data logger is designed for long-term monitoring of pH in estuaries, lakes, streams, rivers, and oceans. Leveraging Bluetooth Low Energy (BLE) technology, the MX2501 pH logger communicates wirelessly with the free HOBOmobile app on iOS and Android 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 data.

You can download the HOBOmobile app for free for Android devices here and for iOS devices here.

The Hobo MX Gateway (purchased separately) can be used to aggregate the data from up to 100 Hobo MX data loggers directly to a PC via Ethernet or WiFi communications.

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Is it possible to read the logger in real time instead of reading out the data? I would like to be able to cross-calibrate it to a CRM across multiple temperatures. And does it read in mV in addition to pH units? Thanks!

Asked by: MattB
Thank you for your question. The only way to read near real-time is using MX Gateway to Onset's cloud storage. https://www.omega.com/en-us/iiot-wireless-systems/wireless-receivers/p/HOBO-MX-Gateway?searchterm=bluetooth
Answered by: Raptor
Date published: 2021-03-03
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Replacement pH Electrode for the HOBO MX2501 logger. Electrodes should be replaced after 6 months.
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Anti-Biofouling guard for the HOBO MX2501 logger
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Replacement End Cap for the HOBO MX2501 logger
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Storage Cap for protecting the pH electrode of the HOBO MX2501 logger
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4 oz. calibration beaker for the HOBO MX2501 logger
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Cal Solution pH 4.01 (475 mL bottle)
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Cal Solution pH 7.00 (475 mL bottle)
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Cal Solution pH 10.00 (475 mL bottle)
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pH Electrode Storage Solution for the HOBO MX2501 logger
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Calibration Kit for the HOBO MX2501 logger. Consists of pH 4.01, pH 7.00, and pH 10.00 buffer solutions (475 mL bottles).
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Calibration Kit and Storage Solution combination
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HOBO MX BLE Gateway - Aggregator
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