About this replacement
Designed for DSC, ADT devices. Compatible models include WTK5504 wireless keypad, WS4920HE wireless repeater, Security Alarm Panel, Wireless Color Touchscreen Keypad. Replacement part numbers include 4PH-H-AA2100-S-D22, 17000153, DSC-BATT2148V. Key specifications: 4.8V, 2000mAh, Ni-MH.