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    HOBO pH and Temperature Data Logger MX2501

    €1.016,- 0 In stock: Delivery time on request
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    Product description

    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 HOBOconnect app and your mobile device, making logger setup, calibration, and data offload quick and easy. A guided pH calibration process on the HOBOconnect 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. (NOTE: pH electrodes should always be stored in storage solution when not deployed.)

    • Guided pH calibration following on-screen prompts in HOBOconnect app
    • Rugged PVC housing for deployment in both freshwater and saltwater environments
    • Quick and easy data offload via Bluetooth Low Energy (BLE) to iOS and Android devices
    • Water detection system for longer battery life and less maintenance
    • Potentiometric pH electrode with plastic body, gel electrolyte, and double cloth junction
    • User-replaceable battery, pH electrode, and anti-biofouling copper guard
    • Accuracy of ±0.10 pH units within ±10°C of temperature at calibration



    pH Sensor
    Range2.00 to 12.00 pH-512 to 512 mV
    Accuracy±0.10 pH units within ±10°C of temperature at calibration±0.20 mV
    Resolution0.01 pH0.02 mV
    Response Time1 minute typical to 90% at constant temperature in stirred water
    Sample Ionic Strength≥ 100 µS/cm
    Temperature Sensor
    Range-2° to 50°C (28.4° to 122°F)
    Accuracy±0.2°C (±0.36°F)
    Resolution0.024°C at 25°C (0.04°F at 77°F)
    Response Time7 minutes typical to 90% in stirred water
    Operating Range-2° to 50°C (28.4° to 122°F) — non-freezing
    BuoyancyFresh water: 13.6 g (0.48 oz) negative
    Salt water: 19.6 g (0.69 oz) negative
    WaterproofTo 40 m (131.2 ft)
    Water DetectionWater conductivity level of 100 µS/cm or greater is necessary for reliable detection of water. Deionized water or water below 100 µS/cm may not be detected.
    The water conductivity circuit may not reliably detect water that has frozen around the electrodes, i.e. below 0°C (32°F).
    Radio Power1 mW (0 dBm)
    Transmission RangeApproximately 30.5 m (100 ft) line-of-sight in air
    Wireless Data StandardBluetooth Low Energy (Bluetooth Smart)
    Logging Rate1 second to 18 hours
    Logging ModesFixed interval (normal, statistics) or burst
    Memory ModesWrap when full or stop when full
    Start ModesImmediate, push button, date & time, or next interval
    Stop ModesWhen memory is full, push button, date & time, or after a set logging period
    Time Accuracy±1 minute per month 0° to 50°C (32° to 122°F)
    Battery TypeOne AA 1.5 Volt, user-replaceable
    Battery Life1 year typical at 25°C (77°F) with logging interval of 1 minute and Bluetooth Always On selected in software.
    2 years typical at 25°C (77°F) with logging interval of 1 minute and Bluetooth Off Water Detect enabled in software.
    3 years typical at 25°C (77°F) with logging interval of 1 minute and Bluetooth Always Off selected in software.
    Faster logging intervals and statistics sampling intervals, burst logging, remaining connected with the app, excessive downloads, and paging may impact battery life.
    pH Electrode Typical Minimum Life6 months in sample with ionic strength ≥ 100 µS/cm
    Memory152 KB (43,300 measurements, maximum)
    Full Memory Download TimeApproximately 60 seconds; may take longer the farther the mobile device is from the logger
    Dimensions22.86 x 4.27 cm (9.0 x 1.68 inches); mounting hole 0.64 cm (0.25 inches)
    Weight268.2 g (9.46 oz)
    Wetted MaterialsLogger: PVC housing and sensor end cap, polycarbonate closure caps and mounting end cap with a TPE switch
    pH electrode: plastic-bodied with Pellon® junctions and gel electrolyte, glass pH sensor bulb
    Environmental RatingIP68



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    HOBO pH and Temperature Data Logger MX2501
    € 1.016,-
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    0 In stock: Delivery time on request
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