YAHHU Wireless RF Temperature Controller – Programmable LCD Backlit Thermostat for Gas Boilers & Water Heating Systems

The YAHHU Wireless RF Temperature Controller (HY09RF) delivers intelligent, hassle‑free climate control for a wide range of heating systems, from gas‑fired boilers to electric resistance heaters and floor‑water heating. With its robust RF connection, the thermostat links seamlessly to a 512 central controller, ensuring reliable communication and precise temperature regulation. Programmable on a weekly basis, it offers flexible scheduling options—6‑plus‑1, 5‑plus‑2, or 7‑day 6‑time programs—so you can tailor heating cycles to your daily routine or seasonal needs. The power‑off memory feature safeguards your settings, automatically restoring them after a power interruption. A clear, backlit LCD display provides instant, easy‑to‑read temperature readings, while the white backlight ensures visibility in low‑light environments. Ideal for hotels, villas, apartments, office buildings, hospitals, schools, malls, and sports venues, this thermostat combines CE/EMC certification with user‑friendly design, making it a reliable choice for any indoor heating application. Its compact dimensions (3.94” × 5.51” × 1.97”) and lightweight construction (0.46 lb) allow for straightforward installation in tight spaces, while the sleek, modern look complements any décor. Whether you’re upgrading an existing boiler system or installing a new electric heater, the YAHHU HY09RF offers smart, programmable control that keeps your environment comfortable and energy‑efficient.

• RF Connection links the thermostat to a central 512 controller, enabling seamless integration with gas boilers or floor water heating systems.
• Weekly programmable schedules allow up to 7 days with 6 or 7 set points, giving full control over heating patterns for maximum convenience.
• Power‑off memory retains all settings during outages, so your programmed temperatures are restored automatically when power returns.
• LCD backlit display offers a clear, white‑lit screen that is easy to read in any lighting condition, simplifying temperature adjustments.
• Suitable for a wide range of settings including hotels, villas, offices, hospitals, schools, malls and sports venues, making it a versatile heating solution.