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|
|
Standard
Microwave
|
Active
Infra-red
|
Passive
Infra-red
|
| NOT
Activated by birds, small animals |
|
|
|
|
| NOT
activated by leaves |
|
|
|
|
| NOT
activated by vehicle headlights or flood lights |
|
|
|
|
| NOT
activated by pedestrians/traffic |
|
|
|
|
| NOT
activated by plastic sheeting |
|
|
|
|
| NOT
activated by debris netting |
|
|
|
|
| NOT
activated by scaffold structure |
|
|
|
|
| NOT
activated by flying debris |
|
Varies
|
|
|
| NOT
activated by vibrations on large working scaffold |
|
|
|
|
| NOT
activated by direct sunlight |
|
|
|
|
| NOT
activated by reflected sunlight |
|
|
|
|
| NOT
activated by hail and heavy rain |
|
|
|
|
| NOT
activated by fog |
|
|
|
|
| NOT
activated by snow and ice |
|
|
|
|
| NOT
activated by frost |
|
|
|
|
| NOT
activated by wind-chill |
|
|
|
|
| NOT
activated by rapid changes in temperature |
|
|
|
|