Vigil 2+ and Vigil Cuatro Electronic Unit 
- 3 integrated stainless steel air filters.
- New external connectors for easy controller unit and cutter replacement.
- NATO Stock Number: (NSN) 1377-13-121-8660
Vigil II Electronic Unit
- SMD and multi-layer print technology
- Sophisticated power management
- Gold plated connectors
- Shielding cover on PCB to protect against EMI (Electro Magnetic Interferences)
- Stainless steel integrated air filter
- NATO Stock Number: (NSN) 5998-13-119-7102
Vigil I Electronic Unit
- 8 bit processor
- SMD and multi-layer print technology
- Sophisticated power management
- Gold plated connectors
- Shielding covers on PCB to protect against EMI (Electro Magnetic Interferences)
- NATO Stock Number: (NSN) 5998-13-118-8845
