Optex RC20U Wireless Chime

Optex 2000 RC20U Wireless ChimeThis device is equipped with three different chime tones to warn you of detection and can operate with up to 9 Optex wireless transmitters on three different zones! An additional three sensors can be added to a latching zone. Since these units are backwards compatible, they will be able to work with all of the original Optex Wireless 1000 units and systems so you don't have to replace all of your old equipment. This unit also features a Form "C" relay for activating other chimes or lights depending on your situation.* Backwards Compatible with 1000 SeriesOptex RC20U Wireless Chime Specifications Power Source: 9VDC Power Adapter (included) Chime Tones: 3 Tones and one "Latching" alarm Volume: Adjustable: 0~80dB/5 levels (Continuous zone: max.) Relay Rating: 50V AC 1A max or 24V DC 1A max. Output Timer: Selectable: off/1/5/30/60sec/utility output mode Radio Frequency: 418MHz Operating Temperature: 15°F-120°F (-9°C +60°C) Maximum Number of Transmitte