Auto-Adjust Digital Clocks
Keep accurate time—these clocks automatically adjust for daylight saving time.
Radio-signal clocks are also known as atomic clocks. They use the NIST atomic clock in Colorado to adjust for daylight saving time. These clocks receive a daily signal to recalibrate for accuracy. Those with a NIST calibration certificate have been tested to NIST standards for accuracy.
Internal-calendar clocks keep track of the current date and time to make daylight saving time changes. They must be manually set at startup.
Ethernet clocks receive power and time updates from your network, so they will automatically adjust for daylight saving time and can be synchronized with other clocks in your facility. Use a CAT5 or faster Ethernet cable to connect the clock to your Power over Ethernet (PoE) switch or to a power converter (sold separately).
Clocks | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Frame | Batteries | Power Converters | |||||||||||||||||
| Time Adjustment Method | No. Ht. | Ht. | Wd. | Dp. | Time Convention | Material | Color | Number Color | Cord Lg., ft. | Included | Size | No. Required | For Use Outdoors | Features | Each | Each | |||
Battery Powered | |||||||||||||||||||
| A | Radio Signal | 2" | 7 1/4" | 9 3/4" | 1" | 12 Hour, 24 Hour | Plastic | Silver | Black | __ | No | AAA | 2 | No | __ | 0000000 | 000000 | 000000 | 00 |
Battery Powered with NIST Calibration Certificate | |||||||||||||||||||
| B | Radio Signal | 4 1/2" | 10 1/2" | 16 1/2" | 3/4" | 12 Hour, 24 Hour | Plastic | Black | Black | __ | Yes | AA | 6 | No | __ | 0000000 | 000000 | 000000 | 00 |
Electric | |||||||||||||||||||
| C | Internal Calendar | 2 1/2" | 6 1/4" | 9 3/4" | 1 1/2" | 12 Hour, 24 Hour | Plastic | Black | Red | 5 | __ | __ | __ | No | Battery Backup | 0000000 | 000000 | 000000 | 00 |
| D | Internal Calendar | 4" | 6" | 14 1/2" | 1 1/2" | 12 Hour | Plastic | Black | Red | 5 | __ | __ | __ | No | Battery Backup | 0000000 | 000000 | 000000 | 00 |
Power-Over-Ethernet | |||||||||||||||||||
| E | Ethernet | 2 1/2" | 5 1/8" | 12 1/4" | 2 1/2" | 12 Hour, 24 Hour | Metal | Black | Red | __ | __ | __ | __ | No | __ | 0000000 | 000000 | 0000000 | 000000 |
Auto-Adjust Clocks
These clocks automatically adjust for daylight saving time.
Clocks with an internal calendar keep track of the current date and time to make daylight saving time changes. They must be manually set at startup.
Radio signal clocks recalibrate their accuracy each day using a signal from the NIST atomic clock in Colorado. They’re also known as atomic clocks.
Wi-Fi and ethernet clocks link to your network for time updates so they can be synchronized with other clocks in your facility. To operate ethernet clocks, use a CAT5 or faster ethernet cable to connect the clock to your power-over-ethernet switch or to a power converter (sold separately).
Clocks | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Material | Batteries | Power Converters | |||||||||||||||
| Style | Time Adjustment Method | Dia. | Frame | Lens | Frame Color | Dial Color | Number Color | Electrical Connection Type | Cord Lg., ft. | Included | Size | No. Required | For Use Outdoors | Each | Each | ||
Battery Powered | |||||||||||||||||
| A | Internal Calendar | 12 3/4" | Plastic | Plastic | Black | White | Black | __ | __ | No | AA | 1 | No | 0000000 | 000000 | 000000 | 00 |
| B | Internal Calendar | 14 1/4" | Plastic | Glass | Black | White | Black | __ | __ | No | AA | 3 | No | 0000000 | 00000 | 000000 | 00 |
| C | Internal Calendar | 16 1/2" | Plastic | Plastic | Black | White | Black | __ | __ | No | AA | 1 | No | 0000000 | 00000 | 000000 | 00 |
| D | Radio Signal | 12 3/4" | Plastic | Plastic | Black | White | Black | __ | __ | No | AA | 1 | No | 0000000 | 00000 | 000000 | 00 |
| D | Radio Signal | 16 1/2" | Plastic | Plastic | Black | White | Black | __ | __ | No | AA | 1 | No | 0000000 | 00000 | 000000 | 00 |
| E | Wi-Fi | 13 1/4" | Plastic | Plastic | Black | White | Black | __ | __ | Yes | AA | 6 | No | 0000000 | 000000 | 000000 | 00 |
| E | Wi-Fi | 13 1/4" | Metal | Glass | Black | White | Black | __ | __ | Yes | AA | 6 | No | 0000000 | 000000 | 000000 | 00 |
Electric | |||||||||||||||||
| F | Internal Calendar | 13 1/4" | Metal | Glass | Black | White | Black | Plug | 5 | __ | __ | __ | No | 0000000 | 000000 | 000000 | 00 |
| F | Internal Calendar | 16 1/4" | Metal | Plastic | Black | White | Black | Plug | 5 | __ | __ | __ | No | 0000000 | 000000 | 000000 | 00 |
Power-Over-Ethernet | |||||||||||||||||
| G | Ethernet | 15" | Metal | Plastic | __ | White | Black | __ | __ | __ | __ | __ | No | 0000000 | 000000 | 0000000 | 000000 |