The Latch M.

Perfect for retrofit and new construction projects alike, the Latch M is our mortise lock built for every door.

From apartment doors to amenity spaces, this device is designed to be easy to install, without requiring additional infrastructure like a hub or a router. As a result, the Latch M empowers more buildings of all shapes and sizes to benefit from LatchOS, an ecosystem of software, products, and services that powers all of a building’s most important capabilities through five customizable modules.

Powered by the Latch Lens.

The iconic Latch Lens connects each device to the power of LatchOS. With a numeric display, back and enter buttons, and faster upgrade times, the improved Latch Lens used in the Latch M also uses 39% less plastic and produces 44% less e-waste than past devices for a more eco-conscious approach.

Convenient ways to open any door.

Users can unlock the Latch M several ways, just like all Latch smart access devices. They can unlock using the Latch App on their smartphone or Apple Watch, with a doorcode, or using physical credentials like a keycard for unparalleled flexibility.

Unlock with
the iOS App

Unlock with
the Android App

Unlock with
Apple Watch

Type in a

Use a

Back-up unlocking options.

Our Inductive Jumpstart™ feature ensures that the Latch M can always be unlocked, even if the batteries die. Using Qi-compatible power sharing from a smartphone or external battery pack, users or property managers can give the device enough power to unlock, ensuring that people can always access their spaces.

Ready to learn more about the Latch M for your property?


Black Exterior, Black Interior

Satin Chrome Exterior, Satin Chrome Interior



Power Supply
6 AA non-rechargeable alkaline batteries

Battery Status
Passive monitoring and active notifications via LatchOS

Inductive Jumpstart
Qi-compatible power source can wireless power a Bluetooth unlock in the event of battery failure


Credential Types
Smartphone, NFC Keycard, Doorcode, Mechanical Key


App and Cloud


Operating Temperature
Interior: -20°C to 54°C

Operating Humidity
0–95% relative humidity, non-condensing

Weather Resistance
Lens: IP65, Exterior/Interior Assemblies: IP55 — Interior assembly not intended for outdoor use

Certifications and Warranty

UL 10B/C (90 min), CAN/ULC S104, FCC Part 15, IC RSS, FL TAS 201/202/203-94, Built to ANSI/BHMA 156.13 Grade 1

Complies with Americans with Disabilities Act

2-year limited warranty on electronic components, 5-year limited warranty on mechanical components

Mechanical Specifications

Lock Format

Field reversible

Door Thickness Compatibility
1-3/4" / 44.5mm

Backset Compatibility
2-3/4" / 69.9mm

Door Preparation

Deadbolt Throw
1" / 25.4mm

Faceplate Options
8" x 1/4", 0.06" Thick / 203.2 x 6.4 mm, 1.5mm Thick

Strike Plate
ANSI 4-7/8” x 1-1/4” / 123.8 x 31.75 mm Curved Lip Strike

Download Specifications