The Dotworkz S-Type Heater Blower is designed for all brands of traditional "brick" or static cameras. The Heater Blower protects camera and de-fogs the outer lens in temperate climates, keeping your camera system in an ideal temperature range of 30° F to 95° F. To combat the cold, the unit's heater automatically activates at 40° F and deactivates at 60° F with a thermal cut-off assuring safe heating operation. The blower remains on at all time, keeping cameras cool and fog free.Now with our MVP option the S-Type HB is the most versatile outdoor housing/camera protection system on the market.