Viking 4in. in. Digital Clock Double Mount - CL-DMD4

Viking Electronics CL-DMD4 Double Mount Housing for 4-Inch Digital Clock

Overview

The Viking Electronics CL-DMD4 is a double mount housing designed specifically to hold two CL-D4 4-inch wireless digital clocks perpendicular to a wall. That mounting geometry — both clock faces angling out from a single bracket — is the practical answer for long corridors, warehouse aisles, and commercial hallways where a flat wall-flush clock is simply invisible to anyone more than a few feet away. If you're deploying Viking's Viking Electronics CL Series wireless clock system in an environment where coverage needs to run the length of a hall rather than across a room, the CL-DMD4 (often searched as CL DMD4) is the hardware that makes that geometry work.

The CL-DMD4 is a purpose-built mechanical accessory within the CL Series ecosystem — it does not contain any electronics, transmitters, or power circuitry. Its role is structural: orient two CL-D4 clocks so both faces are readable at oblique angles down a passage. The CL-D4 clocks themselves, the CL-RFT RF transmitter, and the CTG-2A master clock are all purchased separately. This bracket is the mounting solution, not the timekeeping system.

Key Features

• Perpendicular dual-clock geometry: Mounting two CL-D4 units at opposing angles on a single bracket means a person walking the length of a 100-foot corridor sees a readable clock face throughout, not just at the one spot directly below a flat-mounted unit. This is the geometry problem the CL-DMD4 solves.
• CL Series system compatibility: Built for the CL-D4 specifically — the 4-inch digital variant in Viking's wireless digital clock lineup. The bracket mounting points and clock retention are dimensioned for that model. Do not assume fitment with analog CL Series clocks or larger digital variants without verifying the model match.
• Wireless RF backbone, 915–928 MHz: The CL Series clocks this bracket houses operate on Viking's 915–928 MHz frequency band with up to 1 watt (30 dBm) of RF output from the CL-RFT transmitter. That translates to a stated 3,300-foot open-air transmission range — meaning a single transmitter can theoretically cover an entire mid-size facility, and the CL-DMD4 lets you position clock pairs at the points of highest pedestrian traffic without worrying about signal reach.
• Wide input voltage on the RF system (90–230V AC): The CL Series transmitter that drives these clocks accepts 90–230V AC input, so there are no transformer concerns when installing in facilities with non-standard power — international deployments or older building infrastructure included.
• FCC Part 15 compliance: The CL Series RF system carries FCC Part 15 certification, confirming legal operation in the 915–928 MHz ISM band across the United States without a site-specific license. Relevant if you're specifying this for a regulated or government-adjacent facility.
• Compact housing profile (11