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HOBO® MX TidbiT® Ext Temp (MX2205) Logger Manua
HOBO MX TidbiT Ext
Temp Logger
Model:
• MX2205 Ext Temp
Items included:
• Protective boot
Required Items:
• HOBOconnect app
• Mobile device with
Bluetooth and iOS,
iPadOS®, or Android™,
or a Windows computer
with a native BLE
adapter or supported
BLE dongle
27718-A
HOBO MX TidbiT Ext Temp logger measures temperature in streams, lakes, coastal habitats,
and soil environments. Housed in a protective boot, this rugged logger is designed for extended
deployments in fresh water at depths up to 30.5m (100 ft). The logger uses Bluetooth® Low
Energy (BLE) for wireless communication with a phone, tablet, or computer. Using the
HOBOconnect® app, you can easily configure the logger, download logged data to your mobile
device or computer, or automatically upload the data to HOBOlink® for further analysis. You
can also configure the logger to calculate statistics, set up alarms to trip at specific thresholds,
or enable burst logging in which data is logged at a faster interval when sensor readings are
above or below certain limits.
Specifications
Temperature Sensors
Range
Accuracy
Resolution
Drift
Response Time
(typical, to 90% of change)
Logger
Logger Operating Range
Buoyancy (Fresh Water)
Waterproof
Radio Power
Transmission Range
Wireless Data Standard
Logging Rate
Time Accuracy
Battery
Battery Life
Memory
Full Memory Download
Time
Wetted Materials
Dimensions
Weight
Environmental Rating
l
Probe: -40 to 100°C (-40 to 212°F), with tip and cable immersion in
fresh water up to 50°C (122°F) for one year
Logger: -20° to 70°C (-4° to 158°F) in air; -20° to 50°C (-4° to 122°F) in
water, maximum sustained temperature in water 30°C (86°F)
Probe: ±0.25°C from -40 to 0°C (±0.45 from -40 to 32°F)
±0.2°C from 0 to 70°C (±0.36 from 32 to 158°F)
±0.25°C from 70 to 100°C (±0.45 from 158 to 212°F)
Logger: ±0.25°C from -20° to 0°C (±.45°F from -4° to 32°F)
±0.2°C from 0° to 70°C (±0.36°F from 32° to 158°F)
0.01°C (0.018°F)
<0.1°C (0.18°F) per year
Probe: 3 minutes in air moving 1 m/sec; 20 seconds in stirred water
Logger: 15 minutes typical to 90% in air moving 1 m/s, unmounted;
4 minutes typical to 90% in stirred water, unmounted
-20° to 70°C (-4° to 158°F)
14.26 g (0.50 oz) negative
To 30.5 m (100 ft)
1 mW (0 dBm)
Approximately 30.5 m (100 ft) line-of-sight
Bluetooth Low Energy (Bluetooth Smart)
1 second to 18 hours
±1 minute per month at 25°C (77°F)
CR2477 3V lithium, non-replaceable
3 years, typical at 25°C (77°F) with logging interval of 1 minute and
Bluetooth Always Off disabled in software.
5 years, typical at 25°C (77°F) with logging interval of 1 minute and
Bluetooth Always Off enabled in the app.
Faster logging intervals and statistics sampling intervals, burst logging,
remaining connected with the app, excessive downloads, and paging
may affect battery life.
96,000 measurements
Approximately 45 seconds; may take longer the farther the device is
from the logger.
Epoxy case, Santoprene (TPE) boot
Logger housing: 4.06 x 6.99 x 3.51 cm (1.6 x 2.75 x 1.38 inches)
External temperature sensor diameter: 0.53 cm (0.21 in.)
External sensor cable length: 2 m (6.56 ft.)
70.0 g (2.47 oz.)
IP68
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Summary of Contents for Hobo MX TidbiT Ext Temp
- Page 1 HOBO® MX TidbiT® Ext Temp (MX2205) Logger Manua HOBO MX TidbiT Ext Temp logger measures temperature in streams, lakes, coastal habitats, and soil environments. Housed in a protective boot, this rugged logger is designed for extended deployments in fresh water at depths up to 30.5m (100 ft). The logger uses Bluetooth® Low Energy (BLE) for wireless communication with a phone, tablet, or computer.
- Page 2 3. If this is the first time you are using the logger, firmly press the magnetic start HOBO button near the center of the Protective Boot: This waterproof cover protects the logger logger to wake it up. The alarm and status LEDs blink once during deployment.
- Page 3 HOBO MX TidbiT Ext Temp (MX2205) Logger Manual can be unreliable. Remove it from water for a consistent 4. Tap Name and type a name for the logger (optional). If you connection. do not enter a name, the app uses logger serial number as the name.
- Page 4 HOBO MX TidbiT Ext Temp (MX2205) Logger Manual 13. Set up alarms to trip when a sensor reading rises above or Notes: falls below a specified value. See Setting up Alarms for • The logger checks alarm limits at every logging interval.
- Page 5 HOBO MX TidbiT Ext Temp (MX2205) Logger Manual • The actual values for the burst logging limits are set to 4. Tap to turn on Statistics. the closest value supported by the logger. In addition, Note: Fixed Logging Mode records sensor measurements burst logging can begin or end when the sensor reading is taken at each logging interval.
- Page 6 Any slack in the loop may cause excessive wear. To plot events, tap HOBO Files and select a file to open. • When deploying in water, the logger should be...
- Page 7 HOBO MX TidbiT Ext Temp (MX2205) Logger Manual logging. Deployments in extremely cold or hot temperatures or Protecting the Logger a logging interval faster than 1 minute can impact battery life. Note: Static electricity may cause the logger to stop logging.
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