Siemens ST-100 SF 11/12 The Kidde Fenwal 33-30421 is

The Kidde Fenwal 33-30421 is a state-of-the-art fire suppression control unit that is designed to provide reliable and effective protection for industrial and commercial applications

can be set without the use of a tool and are located behind the appliance to prevent tampering

They feature template programming for new users and a programming interface that experts will be familiar with

The Simplex 4906-9103 is a white multi-candela strobe with intensity selectable as: 15

1A at 12VDC

Siemens ST-100 SF 11/12 The Kidde Fenwal 33-30421 isST 100 require support and is shipped in two (2) 5 ft. (152 cm.) pieces with a coupling for field assembly.