Check the listing for details. ECCO 850N Back Up Alarm,Self-Adjusting,112dB 3WRU4. Condition: New. Listed at 134.81 USD. Vehicle Backup Alarm, Alarm Type Fixed, Alarm Tone Type Tonal, Maximum Sound Level 112 dB, Operating Voltage 12-36V DC, Minimum Sound Level 112 dB, Overall Length 5 11/16 in, Overall Width 3 1/8 in, Overall Height 4 1/8 in, SAE Type Rating Type A, Connector Type 16 AWG Blunt Cut Wire, Mount Type Bolt, IP Rating IP65, Series 800 Series, Speaker Direction Reverse-Facing, Vehicle Class 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, Color Black, Housing Material Nylon, Current 1.3 A Universal Mount ECCO Standard Back-up Alarm is compact and provides a cost effective warning solution with exceptional durability. Sealed in epoxy for protection against moisture, dust, and vibration. Universal bracket maximizes location options, self grounding with stud terminal connectors. • Fiberglass reinforced N.