Certain cameras & recorders have alarm inputs which will trigger when set up to identify potential threats
Many devices including cameras and recorders support audio recording using external microphones via an audio input or built-in microphone. Audio can be set to record along with video, offering both audio and video evidence.
A camera powered by DarkFighter has an improved lens type & better performance than normal entry level cameras. These cameras can capture excellent colour image in an extreme darkest environment down to 0.005Lux