http://www.ntsb.gov/
Time recorded | 30 min continuous, 2 hours for solid state digital units |
Number of channels | 4 |
Impact tolerance | 3400Gs / 6.5 ms |
Fire resistance | 1100 degC / 30 min |
Water pressure resistance | submerged 20,000 ft |
Underwater locator beacon | 37.5 KHz; battery has shelf life of 6 years or more, with 30-day operation capability upon activation |