Metal---Outdoor IP66, Waterproof and professional. Most competitors are not waterproof.
Open Electric lock---Competitors' products can not open lock.
3 Walls + 30 Meters---Most competitor no signal after 1 wall.
● Full Duplex
●App playback SD recorded file
● 720P, ●135° View angel, ● TF card slot to record.
● IR-CUT real color ● Tamper Alarm ●AC/DC 8-24V power, ●DC 12V500mA adapter included.