The AV-200 is a 'hardwired' door chime system, which uses wire to connect the sensor, the speaker, and the power supply, with no battery required. It takes a little more effort to install than the wireless systems, but with a plug-in transformer to power the entire unit, you will never need to change a battery. Once installed, the AV-200 will alert you with a chime for every entry and exit. You may add up to 3 accessories (extra speakers, buzzers, etc) to the AV-200, so it fairly customizable. This unit is a good choice for very high traffic locations.
IMPORTANT-Using an AV-100 power supply will damage this unit and void the warranty! Please use the enclosed 12VDC transformer ONLY.
Note: This unit is not compatible with the AV-100, TX/RX1000A, the RX/TX2000A, or the SL-40.