7000 Series Miniature Toggle Switch | Locking, SPDT, ON-OFF-ON M27500-14TG2T14 The 553 will alarm if

The 553 will alarm if the CO level exceeds 50-70 ppm for more than 5 minutes or will provide an instant alarm if CO spikes above 300 PPM within one minute

This adapter connects the originally installed and re-used ""telephone wire""with the 15-pin D-sub connector on the transmitter

Designed to fit in

This airspeed indicator (EDMO# 16-210-400) fits in a standard 2-1/4 inch mounting hole

has a single cutout

7000 Series Miniature Toggle Switch | Locking, SPDT, ON-OFF-ON M27500-14TG2T14 The 553 will alarm ifThe 7000 series miniature toggle switch has silver contact solder lug terminations. The threaded bushing is designed for panel mount installations with 1 4"" opening. Version 7103K2ZQE is a single pole double throw miniature toggle switch. Positions: ON OFF ON with 3 position lever lock