System Sensor RTS2 Multi-Signaling Accessory w/ KeysCondition:* New surplus stock, in OEM packaging. As pictured. Additional Notes:* Dimensions: 4.8″W x 5.3″H x 1.6″D (12.2cm W x 11.9 cm H x 3.8 cm D)* Operating Voltage: 20-29 VDC* Power Requirements: Standby: 3.0 mA max. Trouble: 16.0 mA max Alarm w/o strobe: 30 mA max* Connections: Strip terminal, 14 AWG to 22 AWG wire* Wiring Distance: 1000 Feet From Duct Smoke Detector* Sounder: 85 dBA at ten feet* Temperature: 14F to 140F (-10C to 60C)* Humidity: 95% relative humidity; non-condensing* Listing: UL 268 and ULC S529-02* Standby (Green Blink), Trouble (Amber), Maintenance (Amber Blink) and Alarm (Red) LEDs to indicate detector status* Keyswitch to select desired sensor, enable test/reset button and sensitivity reading* Test/reset button* Sensitivity reading ability with SENS-RDR (sold separately)* Selectable continuous or temporal tone* AOS-Add-On-Strobe (included on RTS2-AOS model)* Provisions for single- or double-gang box mountingSystem Sensor RTS2