Specifications

HOBO TidbiT MX Temp 400 (MX2203) and Temp 5000 (MX2203) Logger Manual
1-800-LOGGERS 2 www.onsetcomp.com
Specifications (continued)
Full Memory Download
Time
Approximately 45 seconds; may take longer the farther the device is from
the logger
Wetted Materials MX2203: Polypropylene case, EPDM O-ring, stainless steel screws,
Santoprene® (TPE) boot
MX2204: Epoxy case, Santoprene (TPE) boot
Dimensions MX2203: 4.45 x 7.32 x 3.58 cm (1.75 x 2.88 x 1.41 inches)
MX2204: 4.06 x 6.99 x 3.51 cm (1.6 x 2.75 x 1.38 inches)
W
eight MX2203: 36.2 g (1.28 oz)
MX2204: 32.8 g (1.16 oz)
The CE Marking identifies this product as complying with all relevant
directives in the European Union (EU).
See last page
Logger Components and Operation
MX2204 MX2203
Protective Boot: This waterproof cover protects the logger
during deployment. It has two mounting tabs and a built-in
magnet to use with the logger’s internal reed switch (see
Deploying and Mounting the Logger).
Magnetic Start Button: This button is functional when the
logger is inside the protective boot. Press this button for 3
seconds to start or stop the logger when it is configured to start
or stop “On Button Push” (see Configuring the Logger). Press
this button for 1 second to wake up the logger (if configured
with Bluetooth Always Off as described in Configuring the
Logger). You may need to press the button a second time to
wake up the logger if it is logging every 5 seconds or faster and
the temperature is -10°C (14°F) or below.
Mounting Tab: Use the tabs at the top and bottom of the
logger to mount it (see Deploying and Mounting the Logger).
Reed Switch: The logger has an internal reed switch
represented by the dotted rectangle on the logger. The reed
switch is used in conjunction with the magnetic button in the
protective boot. When the logger is removed from the boot, a
magnet placed over the reed switch can substitute for the built-
in button (see Deploying and Mounting the Logger).
Water Detection Screws: These two screws can detect the
presence of water. This allows you to configure the logger in
power-saving mode in which Bluetooth advertising is active
only when the logger is removed from water. See Configuring
the Logger for details. Note: The logger will check for the
presence of water every 15 seconds when the Bluetooth Off
Water Detect power-saving mode is selected.
Temperature Sensor: The internal temperature sensor (not
visible in the diagram) is located on upper right side of the
logger.
Status LED: This LED blinks green every 4 seconds when the
logger is logging (unless Show LED is disabled as described in
Configuring the Logger). If the logger is waiting to start logging
because it was configured to start “On Button Push” or with a
delayed start, it will blink green every 8 seconds. Both this LED
and the Alarm LED will blink once when you press the button to
wake up the logger or will blink four times when you press the
button to start or stop logging. If you select Page Logger LED in
the HOBOmobile app, both LEDs will be illuminated for 5
seconds.
Alarm LED: This LED blinks red every 4 seconds when an alarm
is tripped (unless Show LED is disabled as described in
Configuring the Logger).
Getting Started
Install the HOBOmobile app to connect to and work with the
logger.
1. Download the HOBOmobile app from the App Store® or
Google Play™.
2. Open the app and enable Bluetooth in the device settings if
prompted.
3. Tap the HOBOs icon at the bottom of the screen. Tap the
logger in the list to connect to it.
If the logger does not appear in the list or if it is having
trouble connecting, follow these tips.
If the logger was configured with Bluetooth Always Off
(see Configuring the Logger), make sure the logger is
“awake” by pressing the magnetic start button for 1
second. The alarm and status LEDs will blink once when
the logger wakes up. This will also bring the logger to the
top of the list if you are working with multiple loggers. If
Magnetic
Start Button
Mounting Tab
Protective
Boot
Status LED
Water-Detection
Screws
Reed Switch (Internal)
Alarm LED
Temperature
Sensor
(Internal)