BRG SA480U-MR Outdoor 8″ Ultra Bright LED Clock — Three Ways to Connect Power
By BRG Precision Products | November 4, 2026 | Precision Digital Clocks • Outdoor
Putting a clock outside — or in a wet, humid or dusty space — raises a question most people don’t think about until installation day: how does the power get to it? The BRG SA480U-MR answers that question three different ways.
The SA480U-MR is an 8″ ultra bright, four-digit LED clock readable from 300 feet, housed in a sturdy black brushed aluminum case with a durable, easy-to-clean polycarbonate lens. The “MR” stands for moisture resistant, and it comes in three electrical configurations so it fits the way your electrician wants to wire it.
Three Power Configurations
MR1 — 12 ft. Power Cord
The MR1 includes an outdoor back box, a gang box and a 12 ft. power cord. It’s the simplest installation — just plug it in. MR1 is ideal for indoor pools, aircraft hangars and large warehouses where an outlet is nearby.
MR2 — Outdoor Gang Box with Pigtails
The MR2 includes an outdoor back box and a gang box with pigtails for hardwiring. There’s no cord to hang down the wall, making it a clean, permanent installation for building exteriors.
MR3 — Conduit Connection
The MR3 includes an outdoor back box with a conduit connection on the top (or side) of the clock. When your power runs in conduit, MR3 lets your electrician connect straight to it.
Add GPS if You Want It
The SA480U-MR is a stand-alone clock with a TCXO oscillator, and it updates automatically for Daylight Saving Time. If you want it to lock to GPS time, BRG offers two options:
| Option | Description | Works With |
|---|---|---|
| GP | External GPS antenna with 100 ft. of outdoor Cat5 cable; GPS receiver integrated in a back box on the clock | MR1, MR2 or MR3 |
| GPI | Internal GPS antenna and GPS receiver built into the clock | MR2 or MR3 |
Key Specifications
| Specification | Detail |
|---|---|
| Model | SA480U-MR (MR1, MR2 or MR3) |
| Digit Height | 8.0″ ultra bright LEDs |
| Digits | 4 (HH:MM) |
| Viewing Distance | 300 ft. |
| Dimensions | 10.25″H × 32.25″W |
| Case | Black brushed aluminum with polycarbonate lens |
| Timekeeping | TCXO oscillator; automatic DST; optional GPS |
Other Outdoor Models
| Model | Digit Height | Digits | Viewing Distance |
|---|---|---|---|
| SA480U-MR | 8.0″ | 4 | 300 ft. |
| SA680U-MR | 8.0″ | 6 | 300 ft. |
| SA4120-MR | 12.0″ | 4 | 600 ft. |
| SA6120-MR | 12.0″ | 6 | 600 ft. |
Need synchronized outdoor clocks? The same outdoor models are also available as Ethernet (EN), DuraTime 2.4 GHz Wireless (RC) and DuraTime Wi-Fi (WF) versions, with the same MR1, MR2 and MR3 choices.
Frequently Asked Questions
Q: Which MR configuration should I choose?
If there’s an outlet near the mounting spot, MR1 is the easiest. If your electrician will hardwire the clock, choose MR2. If power will run in conduit, choose MR3.
Q: Do you offer IP65 or NEMA-rated enclosures?
For IP65 clocks, NEMA enclosures or any other special outdoor requirement, call BRG at 866-252-2704 or 316-530-8854.
8″ ultra bright. Built for outdoors. Wired your way.
View BRG Precision Digital Clocks →Buy the SA480U-MR Online →
Contact BRG Sales: 866-252-2704 or 316-530-8854
8″ Ultra Bright • 300 ft. Viewing • MR1, MR2 or MR3 • Optional GPS • Made in the USA
