| Highlights | Includes a camera and a LCD screen viewer 3X digital zoom function LCD screen display clearer outdoor image for added convenience and safety Microphone allows you to talk with anyone outdoor With doorbell function Easy to install |
| General Specs | |
| Model | S3 |
| Camera Resolution | 0.3 mega pixels |
| Screen Size | 2.8" |
| Power | 3xAAA batteries (not included) |
| Viewer Dimensions | 109x96 mm |
| Camera Diameter | Ф31 mm， Ф54 mm |
| Compatible Door Thickness | 35 mm-105 mm |
| Intallation Hole Diameter | Ф18 mm |