| Dual beam detection |
| Automatic gain control circuit |
| Built-in optical viewfinder |
| Lightning surge protection |
| 4-channel changeable frequencies |
| Digital filter circuitry |
| Adjustable blocking time |
| Multiple receiving indications |
| Form C alarm relay output |
| Anti-fog and anti-dew design |
| H/V optical axis adjustment |
| High level RFI/EMI immunity |
Dual beam detection
Automatic gain control circuit
Built-in optical viewfinder
Lightning surge protection
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Dual beam detection Automatic gain control circuit Built-in optical viewfinder Lightning surge protection |