Techno Line WL 1020 Manuel D'utilisation page 23


Changes to red: Air quality sensor (TVOC sensor)
measures very high values and ventilation is urgently
required
Getting started:
Use with USB adapter

Use only the included USB adapter to connect a powered
device with the WL 1020. Or use a standard DC 5.0V/1A
USB-Adapter (not included) to connect the USB adapter
cable to an household power socket.
Use with batteries

Remove the battery compartment cover off the WL 1020
and insert 2 x AAA size battery while observing the correct
polarity [ "+" and "–" marks]. Close the cover on the battery
compartment again.
Notes
EN3