The conclusion The widest door range here — 35 to 100 mm (1.38 to 3.94 in), which takes a thin apartment door the otherwise identical Dioche unit will not — with three pairs of screws in the box, a battery you change without removing the unit, and a 2 Mega sensor. It is also the only listing on this site that tells you what its product cannot do: not HD, not night vision, and it needs light on the landing. Believe that line and budget for a nightlight.
What the maker puts in writing
3.5-inch LCD color screen · OV industrial color image sensor · 2 Mega CMOS
120 degree view
Door hole range 14–28 mm (0.55 to 1.10 in) · door thickness range 35–100 mm (1.38 to 3.94 in)
Inside device approx. 120 × 62 × 20 mm (4.72 × 2.44 × 0.79 in) · outdoor camera approx. 30 mm (1.18 in)
4 × AAA batteries, not included · battery replaced without dismantling the host or the peephole
Package: outdoor unit + inner unit, 3 pairs of screws, 1 metal holder
“It’s not HD and night vision. There has to be enough light in the area to view the subject.”
No storage. No capture. No screen resolution.
It argues against itself
Which no other listing on this site does.
The camera works well enough at night with low-level lighting, but it is not HD
and not night vision, and there has to be enough light to see the subject.
That is a maker choosing a smaller number of sales over a stream of returns.
Take it at face value: a landing light is part of the installation.
Thirty-five millimeters
Five below the Dioche, and that is the real difference.
Thirty-five to a hundred millimeters is the widest door range on this shelf.
A thin apartment or internal door that measures under 40 mm (1.57 in) is outside the range
of the otherwise identical unit next to it.
Three pairs of screws
Which is what a thickness range looks like in a box.
A digital viewer is a barrel clamped from the inside by a screw, and the screw
has to match the door. Too short and it will not bite; too long and it bottoms
out before the plates grip.
Three pairs covers three thicknesses. It is the only package contents list on this
shelf, and it decides whether the installation finishes on the first attempt.
Against the Dioche
Same module, two figures apart.
This takes a 35 mm (1.38 in) door and claims 2 Mega, lists its contents, and costs a dollar
or two less.
That one states its angle as actual rather than diagonal and warns before the
batteries die.
On a thin door, this one.
Availability
On sale at around $56 on the American Amazon store at the time of checking.
Prices and availability are what Keepa reported on the date this page was updated; both move.
Prices quoted in this text were read on October 8, 2026. The live price is at the top of the page.
What reassures, and what does not
Strengths
35 mm (1.38 in) minimum door thickness, the thinnest accepted here
Three pairs of screws supplied, covering three door thicknesses
The battery changes without removing the unit from the door
A 2 Mega sensor
The only listing that states its own limitations
Fifty-six dollars, the cheapest viewer in this group
Compromises
Not HD and not night vision, stated by the maker
Needs ambient light on the landing to show anything
No capture and no storage
No screen resolution published
Short press on, long press off — no automatic timeout stated
The same module as the Dioche listing here at a dollar or two less
Specifications
Door thickness
35–100 mm (1.38 to 3.94 in) — stated; only the EZVIZ CP2 (to 105 mm) goes further on this shelf. Five millimeters at the bottom matters: a thin internal or apartment door that falls below 40 mm (1.57 in) is outside the range of the otherwise identical Dioche unit
Peephole bore
14–28 mm (0.55 to 1.10 in) — stated. Against the 14–16 mm (0.55 to 0.63 in) this shelf's buying tip says most viewers want, a 28 mm (1.10 in) ceiling means an already-enlarged bore is still usable
Screen
3.5-inch LCD color screen, driven by an OV industrial color image sensor — stated. No screen resolution figure
Resolution
A 2 Mega CMOS sensor — stated. The listing immediately qualifies it: the picture is not HD
Field of view
120 degrees — stated
Night vision
None, and the listing says so itself in plain words: it works at night with low-level lighting but it is not HD and not night vision, and there has to be enough light in the area to view the subject. No other listing in this group argues against its own product
Battery
Four AAA cells, not included — stated in the title. The battery is replaced without dismantling the unit or the peephole, which is stated and is the detail that decides whether a change takes two minutes or twenty
Fitting
Indoor unit approximately 120 × 62 × 20 mm (4.72 × 2.44 × 0.79 in), outdoor camera approximately 30 mm (1.18 in) in diameter — stated
Supplied
One outdoor unit and one indoor unit, three pairs of screws and one metal holder — the only package contents list on this shelf. Three screw lengths means three door thicknesses catered for
Amazon reference
B07W7ZQ4QS
EAN
0722765138568
The questions we are asked
Why does a maker say its own camera is not HD?
Because the alternative is a stream of returns, and it is the only listing on this site to make that calculation. The wording is unambiguous: the camera works well enough at night with low-level lighting, but it is not HD and night vision, and there has to be enough light in the area to view the subject. Every other viewer on this shelf either claims night vision or says nothing. Take the statement at face value — it means a landing light or a nightlight is part of the installation, not an optional extra.
What do three pairs of screws mean?
That three door thicknesses are catered for in the box, which is the practical form of the 35 to 100 mm (1.38 to 3.94 in) range. A digital viewer is a barrel clamped by a screw from the inside, and the screw must match the door: too short and it will not bite, too long and it bottoms out before the plates grip. Three pairs is the only package contents list on this shelf, and it is the detail that decides whether the installation finishes on the first attempt. A metal holder for the indoor unit is included with them.
This or the Dioche?
The same hardware, and two figures to choose between. Both publish an indoor unit of 120 by 62 by 20 millimeters, a 14 to 28 mm (0.55 to 1.10 in) bore, a 3.5-inch screen, 120 degrees and four AAA cells not included. This one accepts a door down to 35 mm (1.38 in) against the Dioche's 40, claims a 2 Mega sensor against 1 Mega, lists its package contents, and costs a dollar or two less. The Dioche states its viewing angle as actual rather than diagonal and adds a low-battery alert. On a thin door, this one; otherwise it is close to a coin toss.
Against the rest of the digital door viewers
Between security devices of the same category and nearby price. Shown: what they all state. A half-filled column says nothing.
Model
Price
Screen
Field of view
H-COME 3.5-inch digital peephole viewer, 2 Mega CMOS, 4 × AAA
$56
3.5-inch LCD color screen, driven by an OV industrial color image sensor — stated. No screen resolution figure
3.5-inch LCD color display at 480 × 320 — stated. It is the only screen resolution published on this shelf, and a useful figure: 480 × 320 across 3.5 inches is about 165 pixels per inch, which is legible rather than sharp
120 degrees — stated, the same as every viewer on this shelf
A thin apartment door — 35 mm (1.38 in) up — where the honesty about low light is worth more than a night vision claim
Sources
Specifications: the manufacturer sheet for home security products and the matching Amazon product page. Prices and availability: Keepa. Every figure on this page names its source.
3.5-inch LCD · 1 Mega CMOS · 120° actual viewing angle · door hole 14–28 mm (0.55 to 1.10 in), door thickness 40–100 mm (1.57 to 3.94 in), both published · indoor unit 120 × 62 × 20 mm (4.72 × 2.44 × 0.79 in) · outdoor camera 32 mm (1.26 in) · 4 AAA, not included · low-battery alert · press to wake, no standby drain
One of only two viewers here that publish both the door thickness range and the peephole bore — the two measurements this shelf says to check first.
Best for: A tenant replacing an existing peephole who needs to know it will fit before ordering
3.5-inch LCD at 480 × 320 — the only screen resolution published on this shelf · 720p camera claimed · 120° · zinc alloy outdoor unit · NO door thickness, NO peephole bore, NO battery, NO storage · five of its ten bullets are empty
The only listing here that publishes its screen resolution, on a page whose last five bullets contain nothing at all.
Best for: Nobody, until the seller supplies a door thickness range and a bore diameter in writing
3-inch TFT LCD · 1 MP IR camera with two 850 nm infrared lamps, the only night vision here · 120° · 75 photos to built-in memory, no card · 1200 mAh lithium battery, up to 180 days standby · zinc alloy · NO door thickness range and NO peephole bore published
The only viewer here that sees in the dark, stores pictures and recharges — and the only one that will not tell you whether it fits your door.
Best for: An unlit communal landing, on a door whose thickness and bore you can confirm with the seller first
