Halo Doser

The Astral Halo Doser combined with Bluetooth ORP and pH sensors, provide ultimate protection for your pool health.
With a quick and easy set-up, the pH sensor combined with the Halo Doser will keep your pH in range. Add a gold tipped ORP sensor to
keep your chlorine in line with your pool requirements. (The HaloDoser also allows for basic timed operation without any sensors).
Halo