i
This manual...
describe how to install, connect and operate the DuoFern Environmental Sensor.
i
How to use this manual
◆ Before you begin, please read this manual through completely and follow
all the safety instructions.
◆ This manual is part of the product. Please store it in an easily accessible place.
◆ When passing the DuoFern Environmental Sensor on to a third party, this manual
must be passed on as well.
◆ Damage resulting from non-compliance with this manual and the safety instruc-
tions will void the warranty. We assume no liability for any consequential dam-
age.
i
Hazard symbols
The following hazard symbols are used in this manual:
Danger to life resulting from electric shock
Danger area / dangerous situation
i
Levels of danger and signal words
This hazard will lead to serious injury or death if not avoided.
This hazard may lead to property damage.
DANGER!
ATTENTION!
EN
27