17 appealing polyphonic melodies (2/3 tone, Westminster, pop, classical, special call sequence for the hearing impaired, etc.) and silence function with LED control. Alarm function with DIN emergency call tone for special situations. User-friendly selection of melodies and 500mJ flash light. 4-stage slide switch for call signal setting (1-melody/flash, 2-melody only, 3-flash only, 4-mute). Continuous volume control. Waterproof combination radio button with nameplate and LED transmission control. 13-fold call differentiation for optimal access control. Central call: several receivers can be controlled by one transmitter.
Individual call: each receiver can be controlled individually by additional transmitters. Matrix call: Combination of central and individual calls possible. Receiver/transmitter pre-programmed at the factory. Easiest way to learn additional transmitters at the touch of a button.
 
Hints
However, this range specification is the so-called "free field range" (range with direct visual contact between transmitter and receiver, without disturbing influences). In practical operation, however, there are walls, ceilings, etc. between the transmitter and receiver, which reduces the range accordingly.
 
Technical data:
Component: Complete set
Max. range in open field: 500m
Melodies: 16
Volume: 85dBA
Adjustable volume: Stepless
Manufacturer color: White
Frequency: 868MHz
Transmitter dimensions: 35mm x 95mm x 16mm
Receiver dimensions: 126mm x 60mm x 45mm
Operating voltage (details): Receiver: 230V, transmitter: 2x 1.5V micro battery (AAA)
Product Type: Radio bell