How do I retrofit my SPEEDCHECK-12 radar speed sign from AC powered to battery/solar powered?

This article details where to find instructions for retrofitting a SPEEDCHECK-12 radar speed sign system from AC powered to battery/solar powered.

Product applicability

The following products are discussed in this article:

  • SpeedCheck: SPEEDCHECK-12
    • AC only



The SPEEDCHECK-12 radar speed sign is eligible for retrofitting from AC powered to battery/solar powered with relative ease. Please refer to the retrofit guide and information below for instructions on the retrofitting process and information about the materials that are required:

Battery Only Retrofit Kits¹ Solar Retrofit Kits²
Single battery 30 W panel, single battery
Dual battery 30 W panel, dual battery
  50 W panel, single battery
  50 W panel, dual battery

¹Includes battery charger, brackets, and mounting hardware

²Includes solar panel kit, wiring, and battery kit (no battery charger)


Please note: Instructions for retrofitting from AC powered to solar powered assumes a Solar Power Report (SPR) has been completed by one of Carmanah's technical experts. An SPR confirms the configuration and location of your radar speed sign is sustainable throughout the year on solar power. 

Battery only powered SPEEDCHECK-12 radar speed signs have a battery run time of up to 10 days for one battery and 21 days for two batteries. For more information on battery run time please see our article here.