Door viewers
How wide a view does a door actually need?
Neither records or detects an approach. The Yale joins no network; the CP2 connects over 2.4 GHz Wi-Fi for live view in the EZVIZ app. The other differences are the screen, the angle, and the fact that the EZVIZ listing names what the product does not do.
| Compared on | CP2 | Digital Door Viewer 500 (silver) |
|---|---|---|
| Screen | 4.3-inch | 3.2-inch |
| Field of view | 146° | 105° |
| Sensor | 2 MP | Not stated |
| Motion detection | Stated as absent | Live view only |
| Night vision | Stated as absent | Not stated |
| Door thicknesses | 35 to 105 mm (1.4 to 4.1 in) | 38 to 110 mm (1.5 to 4.3 in) |
| Bore | 14 to 26 mm (0.55 to 1.02 in) | Not stated |
| Network | 2.4 GHz Wi-Fi, live view in the app | None |
| Recording | None, no card or cloud | None |
| Listed on amazon.com | No | Yes |
A tick marks the better answer on that line only. Counting ticks does not decide the page — the two verdicts below do, because these products answer different questions.
No amazon.com listing was found for this one. We hold references for other markets but none for the United States, so it may not be buyable here — which is the first thing to weigh against anything below.
Buy the CP2 for the bigger screen and the wider view — and note that EZVIZ says on its own listing that there is no motion sensor and no night vision, which is why it is here.
Buy the Yale if you want nothing on the door connected to a network and no app at all. Yale states doors from 38 to 110 mm (1.5 to 4.3 in); measure the peephole bore first, as the listing gives no figure for it.
Because nothing about your doorstep goes anywhere. The Yale has no app, no account and no network, and in a catalog where almost every product wants one, a device that wants nothing is worth having. The CP2, by contrast, connects over Wi-Fi, without recording anything.
At an apartment door, yes — 146° shows the corridor either side, where 105° shows the person and little else. On a house door opening onto a step, the difference is smaller than the numbers suggest.
With the CP2, nothing without light: EZVIZ states neither infrared nor a light. The Yale states no night vision. A lit hallway or a motion light outside the door is the precondition for both.
4.3-inch screen · 146° view · 2 MP · no motion sensor · no night vision
A 4.3-inch screen and a 146° lens, and EZVIZ is unusually direct about what it does not have: no motion detector and no night vision. It shows who is at the door when somebody rings or when you look.
Best for: A household wanting a large, simple screen — including for people who will not use an app.
3.2-inch screen · 105° view · live view only · doors 38 to 110 mm (1.5 to 4.3 in)
Yale's straightforward digital viewer: a 3.2-inch screen inside, a 105° lens outside, and a live view at the press of a button. No recording, no app, no network.
Best for: Anyone who cannot comfortably use a conventional peephole, and does not want a connected device on the door.
≈ $68
