Bluetooth pH and Temperature Data Logger - MX2501

The HOBO MX2501 pH and Temperature Data Logger is designed for long-term pH monitoring in estuaries, lakes, streams, rivers, and oceans. Using Bluetooth Low Energy® (BLE) technology, the MX2501 communicates wirelessly with the free HOBOConnect® app on iOS and Android devices, making setup, calibration, and data downloads easy. A calibration process built into the HOBOConnect app makes a typically complicated process easy to follow. This compact logger significantly reduces the time and effort required to collect data in the field, while providing better data resolution.

NOTE: pH electrodes should always be stored in a storage solution when not deployed.

Key Features:
- Easy calibration by following on-screen prompts in the HOBOConnect app
- Rugged PVC housing for use in both fresh and salt water
- 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 fabric junction
- User-replaceable battery, pH electrode and anti-fouling protection

Logger:
- Operating range: -2 to 50°C (frost-free)
- Maximum depth: 40 m
- Battery: AA battery replaceable by the user
- Battery life: 1 to 3 years depending on the energy saving mode selected
- Electrode life: 6 months
- Waterproof: IP68

pH sensor:
- Range: 2 to 12 pH
- Accuracy: +/-0.10 pH (within the range +/-10°C relative to the calibration temperature)
- Resolution: 0.01 pH
- Time response time: 1 minute at 90% in a water flow

Temperature sensor:
- Range: -2 to 50°C
- Accuracy: +/-0.2°C
- Resolution: 0.024°C at 5°C
- Response time: 7 minutes at 90% in a water flow