The Von Duprin 4570-T1 Monitor Strike is an electrical monitor strike designed for cylindrical lock applications on single or paired doors. It provides a monitoring point for the lock and is used with the T1 tripper configuration. The 4570-T1 is intended for doors with an ANSI 115.2 frame cutout, with frame modification required for installation.

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Manufacturer: Von Duprin
Part Number: 4570-T1
Product Name: Monitor Strike for Cylindrical Locks
Faceplate Size: 4-7/8" x 1-1/4"
Electrical Rating: 24VDC
Primary Function: Door security status monitoring
Application: Concealed Vertical Rod (CVR) exit devices
OEM Part: Yes
Warranty: 3-year limited (electronic), Limited lifetime (mechanical)