Front
LCD (p.13)
The display blanks after 30 seconds of oper-
ator inactivity (auto power save).The display
reappears by pressing a button.
When the display is visible, it refreshes about
once per second.
Battery
Cover
(p.17)
SET button
Displays settings.
Back
Operating Buttons
REC/STOP button
Hold for two seconds to start/stop recording.
From a setting display, switches to measurement
display.
Sensor Jacks
(p.20)
Connecting a Temperature/
Humidity Sensor
Operating Buttons
LR5091 Communication Adapter
USB Port (p.32)
Connect a USB cable here to communicate with a
computer. (Mini-B receptacle)
Stand/Strap Attachment Hole (p.40)
Attach the logger to a wall or other surface by
hanging it on a screw. (Supported screw head
dimensions: up to approx. 6.8 mm in diameter
and approx. 2.5 mm in thickness)
IR Port
(p.45)
Communicates
with the LR5091
Communication
Adapter or
LR5092-20 Data
Collector.
(-) button, (+) button
Changes Measurement display contents.
Changes setting values on the Settings display.
IR Port (p.45)
Communicates with the logger.
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