SMS-1GU-173x40 Square Smoke & Sensor Plaster Mounting Platform

Single Gang Square Smoke & Sensor Plaster Mounting Platform

With 1-Gang Adapter Ring Included**

Updated Product Page Description

The SeeLess Universal Square Mount is engineered for clean, trim-free integration of square smoke detectors and sensors, delivering a smooth, recessed finish that blends seamlessly into modern interiors.

This updated platform is designed for use with both the First Alert SC5 Smart Smoke & Carbon Monoxide Alarm and the original Google Nest Protect Smart Smoke and Carbon Monoxide Detector, providing a forward-looking solution as the Nest Protect line transitions out of production.

Built around an innovative universal 1-gang adapter ring, the mount installs into standard 4-square metal back boxes for a secure, refined result. For added flexibility, the gypsum platform also supports Carlon Old Work plastic boxes and low-voltage mud rings, making it suitable for a wide range of wiring conditions and installation environments.

Whether the application calls for low-voltage installation with no box or traditional wiring with a back box, this universal square mount delivers the versatility professionals rely on—paired with a minimal, architectural aesthetic that keeps devices flush with the wall surface.

U.S. and Int’l Patents: www.seeless.com/patents.

Features and Benefits:

• Versatile Compatibility: Supports both low-voltage and standard wiring setups.
• Universal Design: Includes an adapter ring to replace the original SeeLess 1-Gang metal box, ensuring flexible installation options.
• Flexible Installation: Works with low-voltage setups without a box or compatible with standard metal 4" back boxes and Carlon Low-Voltage Plastic Boxes/ Mud Rings.
• Compatibility: Designed around Nest smoke devices.

 Additional Information:

• Face Opening Dimensions: 7.49" x 1.57" (190.18mm x 40mm) 
• Base Opening Dimensions: 6.86" x 1.57" (174.31mm x 40mm) 
• Reveal: 3/4” measured around the Nest size device
• Dimensional Data
• 1 Gang Universal Ring Specs
• Install Guide
• Product Introduction Video
• Seamless Recessed Placement: Ensures a flush fit within drywall.
• Adjustable Mounting Brackets: Fit 3/4", 5/8", and 1/2" drywall.
• Sustainable Material: Environmentally friendly green material.

We look forward to helping you achieve seamless and efficient installations.

Note: Nest Smoke Detectors are not included. Plastic/ Metal boxes are not included.

Discover SeeLess Smoke & Sensor Mounts
Find your perfect match. Download now and compare models with the SeeLess Comparison Guide.

**For bulk orders over $2500, please contact sales@seeless.com for an alternative shipping quote