User's Manual

4 Product use
10
If the connection for the data
transfer is interrupted, the red LED
flashes. The data logger attempts to
establish the connection again (step
8).
4 Any additional press of the button
indicates whether the limit values
were adhered to or violated.
5 The used data loggers can be
assembled in the box provided and
returned to Testo. Please clean the
loggers before assembling them in
the box.
4.3 LED status display
The following statuses are indicated via the LEDs:
Status LED Cause
After being switched on, the data
logger flashes green and red once.
Activation was successful.
After being switched on, the data
logger flashes green at one-second
intervals for a duration of 10
seconds
System test was carried out
successfully.