Could someone look at the following screen clip from toolkit and shed some light as to why the events dont trigger. The idea is to ramp the dlt backlights up and down in relation to the external light level. My external sensor works covering up the unit send the level up and down while monitoring in tool kit. Also if f ramp up and down the DLT BackLight group via a switch programmed as dimmer the backlights go up and down. I messed with all the settings and dont seem to get any effect, some times you just need to ask for help. Michael