MX2501

H O B O ® M X 2 5 0 1 D a ta L o g g e r pH a nd T emperature D ata L ogger 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 ofoad quick and easy. A guided pH calibration process on the HOBOconnect app makes an otherwise complicated process easier to follow. This afordable and compact logger dramatically cuts the time and efort needed to collect feld\ data, while also ofering higher resolution data. (NOTE: pH electrodes should always be stored in storage solution when not deployed.) You can download the HOBOconnect app here: Key Advantages: Guided pH calibration following on-screen prompts in HOBOconnect app Rugged PVC housing for deployment in both freshwater and saltwater envir\ onments Quick and easy data ofoad 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 doub\ le cloth junction User-replaceable battery, pH electrode, and anti-biofouling copper guard\ Accuracy of ±0.10 pH units within ±10°C of temperature at calib\ ration ENR EGISTREUR D E pH www .prosensor .c o m Retr ouv er tous nos pr oduits sur www.prosensor .com 15, rue de M ontv aux 57865 Aman villers - FR ANCE ~ Tél : (00 33) 03 87 53 53 53 - F ax : (00 33) 03 87 53 53 55 - @ : inf o@prosensor .com pH Sensor p H mV Range 2.00 to 12.00 pH -512 to 512 mV A ccuracy ±0.10 pH units within ±10°C of temperature at calibration ±0.20 mV R esolution 0.01 pH 0.02 mV R esponse Time 1 minute typical to 90% at constant temperature in stirred water S ample Ionic Strength 100 µS/cm T emperature Sensor Range -2° to 50°C (28.4° to 122°F) A ccuracy ±0.2°C (±0.36°F) R esolution 0.024°C at 25°C (0.04°F at 77°F) R esponse Time 7 minutes typical to 90% in stirred water L ogger Operating R ange -2° to 50°C (28.4° to 122°F) — non-freezing B uoyancy Fresh water: 13.6 g (0.48 oz) negative Salt water: 19.6 g (0.69 oz) negative W aterproof To 40 m (131.2 ft) W ater D etection Water conductivity level of 100 µS/cm or greater is necessary for rel\ iable 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 fr\ ozen around the electrodes, i.e. below 0°C (32°F). R adio Power 1 mW (0 dBm) T ransmission R ange Approximately 30.5 m (100 ft) line-of-sight in air W ireless D ata Standard Bluetooth Low Energy (Bluetooth Smart) L ogging R ate 1 second to 18 hours L ogging M odes Fixed interval (normal, statistics) or burst M emory M odes Wrap when full or stop when full S tart M odes Immediate, push button, date & time, or next interval S top M odes When memory is full, push button, date & time, or after a set logging pe\ riod T ime Accuracy ±1 minute per month 0° to 50°C (32° to 122°F) B attery Type One AA 1.5 Volt, user-replaceable B attery 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 Of Water Detect enabled in software. 3 years typical at 25°C (77°F) with logging interval of 1 minute\ and Bluetooth Always Of selected in software. Faster logging intervals and statistics sampling intervals, burst loggin\ g, remaining connected with the app, excessive downloads, and paging may impact batte\ ry life. p H Electrode Typical M inimum Life6 months in sample with ionic strength 100 µS/cm M emory 152 KB (43,300 measurements, maximum) F ull M emory D ownload Time Approximately 60 seconds; may take longer the farther the mobile device \ is from the logger D imensions 22.86 x 4.27 cm (9.0 x 1.68 inches); mounting hole 0.64 cm (0.25 inch\ es) W eight 268.2 g (9.46 oz) W etted M aterials Logger: PVC housing and sensor end cap, polycarbonate closure caps and m\ ounting end cap with a TPE switch pH electrode: plastic-bodied with Pellon® junctions and gel electroly\ te, glass pH sensor bulb ENR EGISTREUR D E pH www .prosensor .c o m Retr ouv er tous nos pr oduits sur www.prosensor .com 15, rue de M ontv aux 57865 Aman villers - FR ANCE ~ Tél : (00 33) 03 87 53 53 53 - F ax : (00 33) 03 87 53 53 55 - @ : inf o@prosensor .com