Description
Tired of clocks that drift out of sync or cost a fortune to wire? The Viking CL-D2 delivers big, easy-to-read time across your entire building — without running dedicated clock wires.
This 2.5-inch digital wireless clock is part of Viking’s reliable Wireless Clock System. It automatically stays perfectly synchronized with your master clock, even in larger facilities like schools, offices, factories, churches, and dorms. Just plug it in (or use the included adapter), hang it up, and you’re done.
Each CL-D2 acts as its own repeater, passing the strong RF signal to other clocks so coverage reaches farther than traditional systems. Bright red 2.5" digits are visible from up to 100 feet, with adjustable brightness and instant correction for daylight saving time or power outages.
Perfect for anyone who wants professional, maintenance-free timekeeping without the hassle or high installation costs.
Our Expert Take: If you manage a multi-room or multi-building facility and hate dealing with clock drift, the CL-D2 is one of the most dependable, cost-effective solutions available. We recommend pairing it with the CTG-2A master clock and CL-RFT transmitter for best results. Highly recommended for new installs or retrofits.
Key Features
- Built-in Repeater — Receives and retransmits the sync signal every minute to help cover larger areas
- Bright 2.5" Red LED Digits — Visible from up to 100 feet with two adjustable brightness levels
- 915–928 MHz Frequency Hopping — Reliable performance with minimal interference, no FCC license required
- Automatic Calibration — Instantly corrects for time changes or power interruptions
- Diagnostic Mode — View signal strength, last sync time, clock status, and more
- Loss of Communication Alert — Notifies you if the signal is lost
- Flexible Mounting — Surface mount (with optional CL-SMD2) or double mount (with optional CL-DMD2)
- Easy Power — Includes UL-listed 120VAC to 12VDC adapter; also accepts 12–30VAC/DC
- 12 or 24-Hour Format — Choose what works best for your facility
Technical Specifications
- Input Voltage: 120VAC / 12VDC 500mA UL listed adapter included or 12 – 30VAC/DC
- Average Current Consumption: 85 mA @ 24 VAC (max brightness)
- Display: 4 digits, 2.5" (64mm) tall, vibrant red LEDs
- Bezel Dimensions: 4.69″ (119mm) x 10.31″ (262mm)
- Visibility: 100 ft. (30.48 m)
- Operating Frequency: 915 – 928 MHz frequency hopping
- Transmitter Power Output: 0.25 Watt (8 dBm), up to 500 ft in open space
- Input Sensitivity: -103 dBm
- Temperature Range: 32°F to 90°F (0°C to 32°C)
- Humidity: 5% to 95% non-condensing
- Housing: ABS plastic with anti-glare red bezel
- Mounting: Surface or double mount (optional brackets sold separately)
- Compliance: FCC Part 15, Section 15.247 (no license required)
- Shipping Weight: 2.0 lbs (0.91 kg)