The Sneaky Pete is a short-range radar jammer that can be cloaked. Useful for hiding your units radar signatures from enemy radar, within it's range.
The jamming device hides your units from enemy radar, though this is interrupted for a short period when hit
The Armada T1 Radar jammer tower can be cloaked. The Cortex Castro is not cloakable and has a shorter cloak-range, however it's cost is much lower and has much more HP.