The 1L-MSR-104PF Electronic Reed Switch Recessed Mount is manufactured by 1 LEAP Technologies for industrial and architectural sensing solutions. This model is engineered specifically for applications that demand concealed installation, mechanical protection, and reliable magnetic sensing in fixed structures.
The recessed configuration allows the switch body to be installed fully inside a drilled cavity, makes sure that it remains flush with the mounting surface. This design not only enhances the visual appearance of the installation but also protects the reed switch from accidental impact, external stress, and environmental exposure. The 1L-MSR-104PF is not a general-purpose sensor; it is designed exclusively for recessed mounting environments where durability and stable performance are required.
Key Features
- 3/8″ Dia Pressfit Switch with 18″ Long Wire Leads
- Easy & Time Saving Installation
- Epoxy Coated Magnet to protect from corrosion Chipping
- Operating Gap 5/8″ (16mm) min.
Epoxy Coated Magnet Protection
The magnet paired with the 1L-MSR-104PF electronic reed switch is epoxy coated, providing enhanced resistance against corrosion, moisture exposure, and surface damage. This protective coating makes sure that the magnet maintains consistent magnetic strength and reliable actuation throughout its service life.
Recessed Press-Fit Construction
The 1L-MSR-104PF electronic reed switch features a 3/8 inch diameter press-fit body, enabling quick and secure installation without the need for screws, brackets, or surface fixtures. Once inserted into the pre-drilled hole, the switch holds firmly in place, reducing movement and minimizing installation time. This press-fit recessed design is especially valuable in projects where multiple sensors must be installed efficiently while maintaining consistent alignment.
Because the switch is fully recessed, it remains protected from mechanical wear and accidental contact, making it suitable for long-term use in structural and industrial environments.
Operating Gap and Switching Performance
The 1L-MSR-104PF operates with a minimum operating gap of 5/8 inch (16 mm). This operating distance allows dependable switching while accommodating practical installation tolerances. The defined gap makes sure that the sensor responds consistently to the magnetic field without false triggering, even when slight misalignment occurs during mounting.
This performance characteristic makes the 1L-MSR-104PF recessed mount magnetic switch suitable for applications requiring reliable detection over repeated cycles.
Application Areas for 1L-MSR-104PF
The 1L-MSR-104PF is designed for specific application environments where recessed installation and durability are essential. In shipbuilding, this model is used for monitoring access panels, service hatches, and internal compartments where sensors must remain protected and unobtrusive. The epoxy-coated magnet supports reliable operation in controlled marine environments.
In architectural applications, the recessed design allows the sensor to be completely hidden within doors, frames, and panels, preserving clean aesthetics while providing dependable magnetic switching. The 1L-MSR-104PF electronic reed switch is also widely used in industrial cabinets and equipment enclosures where surface-mounted sensors could be exposed to damage.


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