Sorello RV Wall Thermostat & Relay Box — 12V Single-Zone Programmable Thermostat Kit, LCD & Fan-Speed Control

The Sorello RV Wall Thermostat & Relay Box is a 12V single-zone programmable thermostat kit with an LCD display and relay/control board designed to control heating and cooling systems in campers and RVs.

This kit replaces OE part numbers used across Dometic, Brisk Air, Penguin, and Duo-Therm systems to give reliable temperature regulation and improved system efficiency in mobile living spaces. Supplied as a matched thermostat (3316410.700), relay/control box (3313191.000) and hardware pack, the unit is built from durable ABS and metal components and supports fan-speed control for finer comfort adjustments.

How will this thermostat improve comfort inside my RV?

The Sorello thermostat offers precise, programmable temperature control so your heating or air conditioning runs only when needed. Accurate setpoints and the LCD readout reduce constant manual tweaks and help maintain a steady interior climate during travel or while parked.

• Programmable single-zone control for consistent temperatures
• 40°F–90°F adjustment range to cover most seasons
• LCD display for clear temperature and status feedback
• Fan speed control to fine-tune airflow and comfort

Is it compatible with my Dometic or Duo-Therm system?

Compatibility aligns with several OE numbers—refer to 3316230.000, 3316230.700, 3316230.714 and 3313189.000 when matching parts. Many Brisk Air, Penguin, Dometic and Duo-Therm installations use these part families, but you should confirm wiring and connector types before installation.

• Matches common RV OE part numbers for easy replacement
• Designed to interface with standard 12V RV HVAC wiring
• Includes relay/control box to replace the vehicle-side electronics
• Clear markings on the components simplify compatibility checks

What are the installation and power requirements?

The unit runs on 12 volts, the standard RV electrical bus, and arrives with a control box plus a hardware pack to simplify fitting. The thermostat and relay box use standardized interfaces and labeled connections to shorten installation time for technicians or capable DIYers.

• Operates on 12V DC power common in RV systems
• Includes thermostat (3316410.700) and control box (3313191.000)
• Hardware pack and labeled connectors for streamlined setup
• Constructed from high-strength ABS and metal for durability

How does this product affect HVAC efficiency and equipment lifespan?

By reducing unnecessary on/off cycling and keeping set temperatures steady, the thermostat helps the HVAC system run more efficiently. Smarter cycling reduces wear on compressors and furnace components, supporting longer service life when installed and used correctly.

• Intelligent temperature regulation to limit short cycling
• Fan-speed control to optimize airflow and system load
• Robust materials to withstand RV vibration and use
• Programmable settings to match daily schedules and save energy

Who is this for? The Sorello RV Wall Thermostat & Relay Box is aimed at RV owners, fleet managers and service technicians looking for a drop-in style replacement for single-zone Dometic/ Duo-Therm style systems. It suits campers who want better temperature consistency, travelers requiring reliable 12V control electronics, and DIYers who prefer clear wiring and included hardware. Always verify compatibility with your vehicle's existing connectors and OE part numbers before purchase.