Instruction manual
This instruction manual informs you about the correct handling of the device. Always follow the
safety instructions carefully to avoid the possibility of physical injury to you or others, or damage
to the device or other property. Please keep this manual in a safe place for future reference.
Safety
The use of this device is not permitted in explosion hazard areas.
Installation and Function
The device measures temperature and/or humidity and/or light intensity and transfers these
values to the merkurFunksystem (merkur wireless system).
Internal view
1 Battery compartment
2 Button [Installation mode]
3 LED
4 USB configuration interface
5 Mounting holes
6 Sensor
Press button [Installation mode]
0 – 2 s
Display battery status
3 – 5 s
Sends data telegram to hub
>10 s
Activate installation mode
Technical data
Frequency
Licence free ISM 433/434-MHz-Band adjustable
from 433.05 MHz - 434.79MHz
Power of transmission
Low power radio system < 10 mW
Distance free field
up to 3’000 m
Distance building
2 – 5 floors