This article discusses the differences between the three sizes of SpeedCheck radar speed signs - 12", 15", and 18".
Product applicability
The following products are discussed in this article:
- SpeedCheck: SPEEDCHECK-12, SPEEDCHECK-15 and SPEEDCHECK-18
Carmanah has three different sizes of systems based on LED digit height. Please refer to the information below for a comparison between them:
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| LED digit size | 12" | 15" | 18" |
| Speed limit | Under 45 mph | Under 45 mph | 45 mph and over |
| Legibility distance* | 360 ft | 450 ft | 540 ft |
| LED color | Yellow | Yellow, red or white | Yellow, red or white |
| Optional SLOW DOWN message | No | Yes | Yes |
| Beacon add-ons | No | Optional flashing beacons | Optional flashing beacons |
| Strobe | White strobe included | Optional white or red/blue | No |
| Power options | Solar, AC, Battery-only | Solar, AC | Solar, AC |
| Setup software | PC software or Mobile app | PC software or Mobile App¹ | PC software or Mobile App¹ |
| Remote connectivity | Applied Information | Applied Information or Ethernet | Applied Information or Ethernet |
¹Only systems with the updated controller which shipped starting 2022 Q1/Q2. Contact Carmanah for more details.
*Legibility distance = a minimum specific ratio of 1 inch of letter height per 30 feet (per MUTCD Section 2A.13.02).
For individual data sheets for each product visit our Downloads section here.