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Brushed metal surface-mount keypad with Braille keys, bi-color LED and internal sounder

Linear

Linear 212SE Sealed Environmental Surface Mount Keypad

SKU CH-7R3M-W7DA8

A sealed environmental keypad with corrosion-resistant metal housing, Braille alphanumeric keys, internal sounder, bi-color LED and single-gang box mounting

  • TypeKeypad Access Device
  • Corrosion-resistant brushed metal housing withstands harsh environments
  • All-metal Braille alphanumeric keypad enables tactile operation
  • Internal sounder provides audible key-press feedback
  • Bi-color LED signals operational status at a glance
  • Surface-mount design fits standard single-gang electrical boxes

Product Identity

The Linear 212SE is a sealed environmental keypad built for access control in harsh conditions. Its brushed metal housing resists corrosion while the all-metal Braille keypad ensures durability and accessibility. An internal sounder and bi-color LED provide immediate operational feedback. This device suits installers who need a rugged surface-mount solution for commercial or industrial entry points.

Upgrade Path

The 212SE replaces vulnerable plastic keypads that degrade under moisture, salt spray or heavy use. The jump is worth it when the mounting location faces direct weather, wash-down procedures or high-traffic abuse that would crack standard housings. It also supersedes non-Braille units where tactile compliance is required. Buyers who need integrated proximity reading or wireless enrollment should look elsewhere, as this model focuses on hardwired keypad entry only.

Installation Reality

Mounting is straightforward onto a standard single-gang electrical box or any flat surface using the designed housing footprint. Wiring terminates inside the sealed enclosure, so cable routing must be planned before the unit is fastened. The most common issue is forgetting to seal conduit entries, which compromises the environmental rating. Another frequent error is reversing the LED polarity during wiring, leaving the status indicator dark despite correct keypad function.

Highlights

  • Corrosion-resistant brushed metal housing withstands harsh environments
  • All-metal Braille alphanumeric keypad enables tactile operation
  • Internal sounder provides audible key-press feedback
  • Bi-color LED signals operational status at a glance
  • Surface-mount design fits standard single-gang electrical boxes

Specifications

BrandLinear
Model212SE
TypeKeypad Access Device

Questions about this item

Will the 212SE keypad mount on a standard single-gang electrical box?

Yes, the housing is designed to mount directly on a standard single-gang electrical box or on most flat surfaces.

How is the 212SE keypad installed and what step is often missed?

Mount the unit on a single-gang box or flat surface, then wire the connections; the step often missed is verifying the bi-color LED and internal sounder respond correctly after power is applied.

What maintenance will the 212SE keypad need over time?

The brushed metal housing resists corrosion and the all-metal Braille keypad is sealed; no routine maintenance is required beyond occasional cleaning of the surface.

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