Compatible with HOBOConnect
Data logger
Bluetooth
pH
Temperature

ONSET

MX2501

HOBO MX2501 pH/Temperature Data Logger

11 480 SEK

A convenient and affordable pH and temperature logger for long-term monitoring of pH in water, which uses Bluetooth for easy installation and data retrieval.

Very suitable for monitoring pH in estuaries, lakes, streams, rivers and oceans. This logger utilizes Bluetooth technology to communicate wirelessly with Onset's free HOBOconnect app running on your mobile device or Windows computer, making logger installation, calibration and data reading quick and easy.

The app guides you through the entire pH calibration process, which can otherwise be a cumbersome step.

Properties

Questions or thoughts?
Feel free to call +46 735 95 71 91
or e-mail ebbe@caplite.se

Features
  • Guided pH calibration through the HOBOconnect app
  • Robust PVC housing for both fresh and salt water
  • Simple data transfer via Bluetooth to computer or mobile
  • Water detection for improved battery life and lower maintenance
  • Potentiometric pH electrode with plastic body, gel electrolyte and double fabric connection.
  • User replaceable battery, pH electrode and dirt protection
  • Accuracy of ±0.10 pH units within ±10°C of temperature at calibration
Specifications

pH SENSOR

Range: 2.00 to 12.00 pH; -512 to 512 mV

Accuracy: ±0.10 pH units within ±10°C of calibration temperature; ±0.20 mV

Resolution: 0.01 pH; 0.02 mV

Response time: 1 minute typically to 90% at constant temperature in moving 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)

Resolution: 0.024°C at 25°C (0.04°F at 77°F)

Response time: 7 minutes typically to 90% in moving water

LOGGER

Operating range: -2° to 50°C (28.4° to 122°F) - not freezing

Depth rating: IP68; waterproof to 40 m
Water detection: Water conductivity of 100 µS/cm or higher is necessary for reliable water detection. Deionized water cannot be detected.
The water line circuit cannot reliably detect water that has frozen around the electrodes, i.e. below 0°C (32°F).

Radio power: 1 mW (0 dBm)
Transmission range: Approximately 30.5 m (100 ft) clear line of sight in air
Wireless data standard: Bluetooth Low Energy (Bluetooth Smart)

Logging frequency: 1 second to 18 hours
Time accuracy: ±1 minute per month 0° to 50°C (32° to 122°F)

Battery type: One AA 1.5 Volt, user replaceable

Battery life:
1 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 Detection enabled in software.
3 years typical at 25°C (77°F) with logging interval of 1 minute and Bluetooth Always Off selected in software.

Typical minimum pH electrode life: 6 months in samples with ionic strength ≥ 100 µS/cm

Memory: 152 KB (43,300 measurements, maximum)

Size: 268.2 grams 22.86 x 4.27 cm
What's included
  • MX2501 pH and Temperature Data Logger
  • pH electrode
  • A bottle of liquid used to store the electrode in
  • Anti-dirt protection for the sensor
  • A tube of silicone
  • AA battery