... 4. low power comsuption 5. easily DIY installation Color 2.8" digital video Peephole door viewer Model:SMT-MY-001Function ... automatically, support 16G SD card which can save more pictures.2. 2.8 TFT LCD, ingenious design, with clear image.3. ... Using hard wire to connect outdoor station and indoor monitor.8, It can be used in the family, office, ... size: 135(L)×85(W)×18(H)mm 2.8" digtal peephole eye