Effect on armor

[Vismund45]

i liked the idea of the Night Strike armor mod

but instead of having a stealth field of 30 that is always on while in sneak mode I've been attempting to make an effect that gives a stealth field of 70 with a duration of 30 seconds while in sneak mode but to no avail

 

So far the effect works just like that of the Night Strike armor mod, but i can't seem to get the duration to work

 

My object effect is as follows

 

Effect: StealthBoyInvis

Range: Self

Area:

Duration: 30s

Magnitude: 75

ActorVal:

 

Conditions

Target: S

Function Name: IsSneaking

Function Info: NONE

Comp: ==

Value: 1.00

AND

 

i am extremely new to all of this so i've most likely made a dumb mistake or looked over an obvious parameter

 

any help would be great!