When at WOT the lean switch will then start to monitor the AFR and if it goes lean during the run it will shut your nitrous down. simple to install and setup. •+12V output and a ground output when the nitrous is active.
DynoTune Nitrous Lean Shutdown Switch - Air/Fuel Safety Controller 0-5V
15707 Nitrous Express Nitrous Arming Switch, Lighted (Red)
00-61001 Nitrous Outlet WinMax TPS and RPM Activated Nitrous Window Switch USA
AED 6086-NItrous Activation Switch-Wide open Throttle switch for 4150 w/ bracket
Wide Open Throttle Switch Bracket Nitrous Micro Switch
AED 6087-NItrous Activation Switch-Wide open Throttle 4500 Dominator- w/ bracket