HDMI output (1920x1080) HD for high definition multi-channel live viewing only. 1080p recording resolution is limited to a maximum of 1920x1080 per channel. Image quality and resolution is dependent on the type of camera connected to the DVR.
Neon can last decades. In practical terms the normal expected life span is between 8 to 15 years. Neon can be repaired and recharged as long as the tubing is not cracked/broken.
The three flanges hold the tube perpendicular to the tympanic membrane. Triune tubes tend to remain in the tympanic membrane for a mean of 30 months. The Triune tube is used when long-term ventilation of the middle ear is desired. T-Tubes.