IEI 212I, Indoor Flush-Mount KeypadCondition:* Used, Removed From Service In Working Condition. Unable To Test. As Pictured.Additional Notes:* 120 Users* Single Gang Design* 1 x SPDT 2 Amp Relay And Three 50 mA Negative Voltage Outputs* Optional 293 Relay Board Converts 3 Voltage Outputs To SPDT Relays* Indoor Use Only* Functionality Mode: 212, 232* Operating Voltage: 12-24 Volt AC/DC Auto Adjusting* Dimensions: 2.75 W x 4.50 H x 1.3 DIEI212I