effectiveness of cloaking

[tesco samoa]

i cannot remember will this work as a cloak...

Name := Passive EM Cloaking Device I
Description := Field generated around a starship which passes all energy around the ship. This field has the effect of rendering the ship invisible.
Pic Num := 237
Tonnage Space Taken := 40
Tonnage Structure := 40
Cost Minerals := 500
Cost Organics := 0
Cost Radioactives := 1000
Vehicle Type := Ship\Base\Sat\Drone
Supply Amount Used := 100
Restrictions := None
General Group := Cloaking
Family := 600
Roman Numeral := 1
Custom Group := 0
Number of Tech Req := 1
Tech Area Req 1 := Cloaking
Tech Level Req 1 := 1
Number of Abilities := 1
Ability 1 Type := Cloak Level
Ability 1 Descr := Prevents level 1 Passive EM scans.
Ability 1 Val 1 := EM Passive
Ability 1 Val 2 := 2
Weapon Type := None

or do you have to include all the other cloak abilities...