Bluetooth pH and temperature recorder MX2501

Designed for long-term monitoring of the pH in estuaries lakes streams rivers and oceans, this recorder uses technology Bluetooth to communicate wireless with free app HOBOconnect of'Onset run on your mobile device or Windows computer, making configuration, calibration and unloading of data quick and easy.
In addition calibration process guided pH in the HOBOconnect application facilitates the monitoring of a process that is otherwise complicated.
This recorder compact and approachable provides data high resolution and significantly reduces the time and effort required to collect them.

Technical specifications:

- Guided pH calibration following the on-screen invitations in the HOBOconnect application
- Robust PVC housing for deployment in freshwater and salt water environments
- Fast and easy unloading of data via Bluetooth to mobile devices or Windows computers
- Water detection system for longer battery life and less maintenance
- Potentiometric pH electrode with plastic body, gel electrolyte and fabric double junction
- User-replaceable battery, pH electrode and copper protection
- Accuracy of ±0.10 pH units at ±10°C temperature during calibration

Features of the pH sensor:

- Range: pH 2.00 to 12.00 (-512 to 512 mV)
- Accuracy: ±0.10 pH units at ±10°C temperature during calibration (±0.20 mV)
- Resolution: 0.01 pH (0.02 mV)
- Response time: typical 1 minute at 90% at constant temperature in agitated water
- Sample ion strength: ≥ 100 μS/cm

Sensor Features temperature:

- 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 to 77 °F)
- Response time: typical 7 minutes at 90% in agitated water

Recorder Features:

- Operating range: -2° to 50°C (28.4° to 122°F) - without frost
- Flottability:
Fresh water: 13.6 g (0.48 oz) negative
Salt water: 19.6 g (0.69 oz) negative
- Waterproof: up to 40 m (131.2 feet)
- Water detection: a water conductivity level of 100 μS/cm or more is required for reliable water detection, deionized water or water below 100 μS/cm may not be detected.
The water conductivity circuit may not reliably detect the water that has frozen around the electrodes, i.e. below 0°C (32°F).
- Radio power: 1mW (0dBm)
- Transmission range: approximately 30.5 m (100 feet) of direct visibility in the air
- Wireless data standard: bluetooth low consumption (Bluetooth Smart)
- Log rate: 1 second at 6 p.m
- Modes of logging: fixed interval (normal, statistical) or gust
- Memory modes: wrap when full or stop when full
- Start modes: Immediate, push button, date and time or next interval
- Stop modes: when the memory is full, press the button, date and time or after a specified recording period
- Accuracy of the time: ±1 minute per month 0° to 50°C (32° to 122°F)
- Battery type: AA 1.5 Volt, replaceable by user
- Battery life:
Typical 1 year at 25°C (77°F) with 1 minute recording interval and Bluetooth Always We select from the software.
2 years in general at 25 °C (77 °F) with a recording interval of 1 minute and Bluetooth Off Water Detect enabled in the software.
Typical 3 years at 25°C (77°F) with a recording interval of 1 minute and Bluetooth Always Off selected in the software.
Faster recording intervals and statistical sampling intervals, gust recording, staying connected to the application, excessive downloads and pagination can have an impact on battery life.
- Minimum typical pH electrode life: 6 months in a sample with an ionic force ≥ 100 μS/cm
- Memory : 152 Kb (43 300 measurements, maximum)
- Full memory download time: about 60 seconds, can take longer the mobile device is away from the recorder
- Dimensions: 22,86 x 4,27 cm (9,0 x 1,68 inches); mounting hole 0.64 cm (0.25 inches)
- Weight: 268.2 g (9.46 ounces)
- Materials:
Recorder: PVC housing and sensor end cap, polycarbonate closure caps and mounting end cap with TPE switch pH electrode: plastic body with Pellon and gel electrolyte junctions, glass pH sensor bulb
- Environmental assessment: IP68

Contents of the box:

- pH and temperature recorder MX2501
- Electrode pH
- Bottle of storage solution which can also be used as storage container for electrode
- Anti-biofouling copper guard
- Silicone grease tube
- AA battery