Some states require a sensor that reads the slab's temperature (Colorado, New York, Rhode Island). If so, quote the SCP-120 or Multi Zone Snow controls.
Colorado - Section R403.9 Snowmelt Systems Controls. Snow- and ice-melting systems, supplied through energy service to the building, shall include automatic controls capable of shutting off the system when the pavement temperature is above 50°F, and no precipitation is falling and an automatic or manual control that will allow shutoff when the outdoor temperature is above 40°F.
The SCP -120 and the ZoneBraker will comply with this requirement, since they both come with OT sensors (pavement installed).
New York State: 2020 Energy Conservation Construction Code of New York State
https://codes.iccsafe.org/content/NYSECC2020P1/chapter-4-re-residential-energy-efficiency#NYSECC2020P1_RE_Ch04_SecR403
From the Code Enforcement Guide: If applicable, do snow- and ice-melting systems include automatic controls configured to shut off the system when the pavement temperature is above 50°F and precipitation is not falling, and control that can shut off when the outdoor temperature is above 40°F? See the attached Screen shot of the code.
The SCP-120 and the ZoneBraker should comply with the requirements of this code, since the control remains off at temperatures above 38 and has a slab temperature OT sensor that can be configured to turn off at 50F. The control also has a manual ON-OFF switch.
Rhode Island Conservation / Energy Code - Section 403.8 Snow melt system controls (Mandatory). Snow- and ice-melting systems, supplied through energy service to the building, shall include automatic controls capable of shutting off the system when the pavement temperature is above 50°F, and no precipitation is falling and an automatic or manual control that will allow shutoff when the outdoor temperature is above 40°F.
The SCP -120 and the ZoneBraker will comply with this requirement, since they both come with OT sensors (pavement installed).