Simons Voss Technologies SPEL Guide Abrégé page 34

1. General safety instructions
damaged by reverse polarity of the power source.
Do not reverse the polarity of the voltage source (batter-

ies or mains adapters).
IMPORTANT
Failure of operation due to different discharged batteries
This product uses one or more batteries for power supply.
The batteries are discharged at approximately the same
rate.
Always replace all batteries at the same time.

IMPORTANT
Operational malfunction due to radio interference
This product may be affected by electromagnetic or mag-
netic interference.
Do not mount or place the product directly next to

devices that could cause electromagnetic or magnetic
interference (switching power supplies!).
IMPORTANT
Communication interference due to metallic surfaces
This product communicates wirelessly. Metallic surfaces
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