| Dictionary, Encyclopedia and Thesaurus - The Free Dictionary 1,803,957,133 visitors served. |
|
Dictionary/ thesaurus | Medical dictionary | Legal dictionary | Financial dictionary | Acronyms | Idioms | Encyclopedia | Wikipedia encyclopedia | ? |
PIR |
0.04 sec. |
How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
|
| ? References in periodicals archive |
|---|
The sensor uses seismic, magnetic or passive infrared detectors, and reports on any activity with customised voice prompts or short data bursts. A Comparison Of Time-Lapse Video Recordings And Passive Infrared Still Cameras For Surveying Small Mammalian Predators. The Falcon Watch system uses seismic and magnetic detectors and passive infrared sensors to trigger the system and send a warning. |
| Acronyms and Abbreviations |
| Free Tools: |
For surfers:
Free toolbar & extensions |
Word of the Day |
Help
For webmasters: Free content | Linking | Lookup box | Double-click lookup | Partner with us |
|---|