Don-Jo ULDV-180 180-Degree Doo...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$24.71
Don-Jo ULDV-180 180-Degree Door Viewer with UL Rated Glass Lens

Don-Jo ULDV-180 180-Degree Door Viewer with UL Rated Glass Lens

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Model: ULDV-180-626
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Don-Jo ULDV-180 180-Degree Door Viewer with UL Rated Glass Lens

The Don-Jo ULDV-180 is a UL Rated 180-Degree Door Viewer featuring a glass lens and a 9/16" view dimension, engineered for reliable residential door security. Designed to fit doors ranging from 1-3/8" to 2" in thickness, this door viewer meets ANSI standard L23221 and is available in 605 and 626 finishes to complement a wide range of door hardware. Its wide 180-degree field of view provides comprehensive visibility for safe and confident identification of visitors before opening the door.

Key Features

  • 180-Degree Viewing Angle: Provides a full 180-degree field of view for maximum visibility and enhanced residential security.
  • 9/16" View Dimension: Generous 9/16" view dimension delivers a clear, wide sightline through the door.
  • Door Thickness Compatibility: Fits doors ranging from 1-3/8" to 2" thick, accommodating a broad range of standard residential door constructions.
  • UL Rated Glass Lens: Features a UL Rated glass lens for verified quality and performance compliance.
  • ANSI L23221 Certified: Meets ANSI standard L23221, ensuring conformance with recognized industry specifications.
  • Available Finishes: Offered in 605 (Bright Brass) and 626 (Satin Chrome) finishes to coordinate with existing door hardware.
  • Convenient Shelf Pack: Sold in shelf packs of 10, making it ideal for contractors and multi-unit residential projects.

Certifications & Compliance

  • UL Rated
  • ANSI L23221 Certified

Technical Specifications

  • Subcategory: Accessory Hardware
  • Product Group: Door Trim and Accessories
  • Product Subgroup: Door Knockers and Viewers
  • Product Type: Door Viewers
  • Commercial/Residential: Residential
  • Product Model: ULDV 180, ULDV 50, ULDV 90
  • Product Category: Door Trim and Accessories
  • Department: Door Hardware

Typical Applications

  • Single-Family Residential Entry Doors
  • Multi-Unit Apartment and Condominium Buildings
  • Townhome and Row House Entry Points
  • Senior Living and Assisted Care Facilities
  • Student Housing and Dormitory Doors
  • Vacation Rental and Short-Term Lodging Properties
  • Light Commercial Office Entry Doors

Why Don-Jo ULDV-180?

Don-Jo ULDV-180 door viewers are built to meet UL Rated and ANSI L23221 standards, delivering verified performance and quality in a compact, easy-to-install package. With a 180-degree field of view, a 9/16" view dimension, and compatibility with doors from 1-3/8" to 2" thick, this viewer is a dependable choice for residential security applications where reliable visitor identification is essential.

Manufacturer Resources

DON-JO Accessory Hardware

Product Specs

Subcategory:
Accessory Hardware
Product Group:
Door Trim and Accessories
Product Subgroup:
Door Knockers and Viewers
Product Type:
Door Viewers
Commercial/Residential:
Residential
Product Model:
ULDV 180, ULDV 50, ULDV 90
Product Category:
Door Trim and Accessories
Department:
Door Hardware

Don-Jo ULDV-180-626 – Frequently Asked Questions

1) How wide is the field of view on the Don-Jo ULDV-180 peephole?
180 degrees, with a 9/16 inch view dimension through the lens. That is a full half-circle, so someone standing flat against the door frame to either side is still visible. If you want more spread than that, the Trimco 976 and Trimco 977 are 200 degree viewers; on the narrower end, the Rockwood 620 and Sure-Loc DV160-UL are 160 degree.
2) What is the closest equivalent to the Don-Jo ULDV-180 door viewer for a 1-3/8 inch to 2 inch door?
The Rockwood 620 covers the same 1-3/8 inch to 2 inch door thickness range as the Don-Jo ULDV-180, so it drops into the same bore on a standard residential entry door. The difference is the sightline: the ULDV-180 gives a 180-degree field of view, while the Rockwood 620 is a 160-degree viewer. The Sure-Loc 180-degree door viewer for residential doors matches the ULDV-180 on viewing angle if the wider field is the reason for the spec.
3) The Don-Jo ULDV-180 fits up to a 2 inch door. What door viewer should I use on a thicker door?
The Don-Jo ULDV-180 tops out at a 2 inch door. For a thicker leaf, the Rockwood 621 is a UL Listed 160 degree viewer built for 2 inch to 2-1/2 inch doors, and the Hager 1759 is a 185 degree one-way viewer covering 1-3/8 inch to 2-1/8 inch. The Trimco 975 and Trimco 976 both cover 1-17/64 inch to 2-1/8 inch, at 160 degrees and 200 degrees respectively. Measure the leaf at the bore location before ordering, since a viewer sized for a thinner door will not seat.
4) Can I use the Don-Jo ULDV-180 on a fire rated door?
The Don-Jo ULDV-180 carries a UL Rated glass lens and is specified for residential use. When the opening is a labeled fire door and the submittal calls for a fire rated viewer, the Ives U698 is a one-way wide angle viewer with a UL fire rating and a 190 degree view, the Ives U696 is fire rated at 150 degrees, and the Ives U700 is a one-way brass viewer with a UL fire rating. The Hager 1756 is a 185 degree one-way viewer with a fire rating for a 2-1/8 inch door.
5) I need a door viewer that a tenant can close off for privacy. Does the Don-Jo ULDV-180 have a cover?
The Don-Jo ULDV-180 is a plain 180-degree viewer with a UL Rated glass lens. If the unit needs an interior cover the occupant can close, the Cal-Royal PRIULDV200 is a UL Listed privacy door viewer with a 200 degree glass lens and a privacy cover, the Hager 1759 is a 185 degree one-way viewer with a privacy flap, and the Rockwood 624 is a 160 degree viewer with a cover for 1-3/8 inch to 2 inch doors. The Trimco 977 pairs a 200 degree lens with a heavy duty cover.
6) What finishes does the Don-Jo ULDV-180 door viewer come in?
Three: 605 polished brass, 613 oil rubbed bronze, and 626 satin chrome. Those are the standard BHMA finish numbers, so 605 matches brass knobs and hinges already on the door, 626 matches satin chrome or brushed nickel trim, and 613 matches the dark bronze packages common on newer townhome and rental entries. Pick by what the entry lockset already is, since the viewer sits inches from it.
7) Do I need a privacy cover or flap with the Don-Jo ULDV-180 viewer?
The ULDV-180 is a plain viewer with no cover. Tenants in multi-family sometimes want one, either to block reverse-viewing devices or just for peace of mind. If that is a requirement on your job, the Hager 1759 is a 185 degree viewer with a privacy flap and covers 1-3/8 inch to 2-1/8 inch doors, the Cal-Royal PRIULDV200 is a privacy viewer with a cover, and the Trimco 977 carries a heavy duty cover. Otherwise the ULDV-180 does the job with fewer moving parts.
8) I'm outfitting a whole apartment building with peepholes. Is the Don-Jo ULDV-180 sold in bulk?
It ships in shelf packs of 10, which is why it turns up on multi-unit and student housing jobs rather than as a one-off hardware store part. Buying one finish across the building keeps every door identical, and the 1-3/8 inch to 2 inch thickness range covers the mix of slab weights you typically find across an older property without having to sort doors first.
9) What's the difference between the Don-Jo ULDV-180 and the ULDV-50 or ULDV-90?
The number is the viewing angle. ULDV-180 gives the full 180 degree spread; the ULDV-50 and ULDV-90 are the narrower members of the same family. For an entry door where you want to see someone standing off to the side of the frame, the 180 is the one to order. Order by the full model designation, since the three are otherwise the same style of viewer.
10) What's a direct substitute for the Don-Jo ULDV-180 door viewer?
For the same 1-3/8 inch to 2 inch door range, the Rockwood 620 is the closest straight swap at 160 degrees, and the Rockwood 624 covers the same thickness range with a cover. The Sure-Loc DV180 is the other 180 degree residential viewer. If you are working a door outside that thickness band, none of those help and you need the Rockwood 619 for thin doors at 11/16 inch to 1-1/16 inch, or the Rockwood 621 for 2 inch to 2-1/2 inch.
11) What door viewer gives a wider field of view than the Don-Jo ULDV-180?
The Don-Jo ULDV-180 delivers a 180-degree field of view with a 9/16 inch view dimension. For a wider sightline on an entry where the approach angle is tight, the Ives U698 is a UL fire rated wide angle viewer at 190 degrees, and the Cal-Royal PRIULDV200 uses a 200 degree glass lens. The Trimco 976 and Trimco 977 are both 200 degree viewers covering 1-17/64 inch to 2-1/8 inch doors.
12) What is a simpler brass door viewer alternative to the Don-Jo ULDV-180?
The Emtek 2610 is a solid brass door viewer that takes a 5/8 inch diameter hole, and the Ives 701 is a one-way brass viewer with a 120 degree viewing angle intended for thicker doors. Both are narrower-angle brass units where the Don-Jo ULDV-180 is a 180-degree viewer offered in 605 polished brass, 613 oil rubbed bronze, and 626 satin chrome. Confirm the existing bore diameter before swapping, since the Emtek 2610 is dimensioned for a 5/8 inch hole.
13) I am standardizing door viewers across an apartment building. What options match the Don-Jo ULDV-180 for a whole-property spec?
The Don-Jo ULDV-180 meets ANSI L23221 with a UL Rated glass lens, fits 1-3/8 inch to 2 inch doors, and is offered in 605 polished brass, 613 oil rubbed bronze, and 626 satin chrome so it can be matched to existing unit hardware. If part of the property has thicker doors, the Rockwood 621 covers 2 inch to 2-1/2 inch and the Hager 1759 covers 1-3/8 inch to 2-1/8 inch. If some units need a privacy cover, the Rockwood 624 carries the same 1-3/8 inch to 2 inch range with a cover, keeping the bore consistent across the building.
14) What UL listed door viewers compare to the Don-Jo ULDV-180?
The Don-Jo ULDV-180 uses a UL Rated glass lens and meets ANSI L23221. Among comparable viewers, the Sure-Loc 160 degree door viewer carries a UL Listed rating, the Cal-Royal PRIULDV200 is UL Listed with a 200 degree glass lens and privacy cover, the Rockwood 621 is UL Listed for 2 inch to 2-1/2 inch doors, and the Ives U700 is a one-way brass viewer with a UL fire rating. The viewing angle and door thickness range are what separate them.
15) Can the Don-Jo ULDV-180 be seen through from outside the door?
No. The ULDV-180 is a one-way viewer with a UL Rated glass lens, so it reads from inside out only. That is the whole point of the part, and it is why the glass lens spec matters more than the finish on a security job.
How fast can I get the Don-Jo ULDV-180-626 delivered?
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Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Don-Jo ULDV-180-626 come with a warranty?
Absolutely. The Don-Jo ULDV-180-626 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Don-Jo ULDV-180-626?
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