AC-SOS-1-LV — The iO HVAC Controls AC-SOS-LV is a professional-grade wireless shutoff system designed to reduce unnecessary energy use in vacation rentals, condos, hotels, and light-commercial spaces. By detecting open doors and windows, the system automatically disables the mini-split outdoor unit when conditioned air is being wasted—saving energy, reducing equipment wear, and improving overall system efficiency.

✓ Free shipping on this item — ships from The AC Outlet.

Features & Benefits

• The included solar-powered AC-SOS-TR door/window sensors communicate wirelessly with the outdoor receiver module. When a door or window is left open for more than 2 minutes, the system opens the OP contacts and shuts down the HVAC unit until the opening is closed again.
• Built in a weatherproof enclosure and designed specifically for mini-split applications, the AC-SOS-LV provides reliable wireless control, long-life components, and easy installation for HVAC professionals.
• Features:
• Detects open doors or windows and powers down the mini-split after 2 minutes of exposure
• Prevents energy waste in rental units, hospitality settings, and high-traffic environments
• AC-SOS-TR sensors send wireless open/close signals to the receiver
• Harvests ambient light to maintain charge
• Includes pre-installed CR1225 backup battery for low-light conditions (up to 5 years operation)
• Up to 30 sensors can be paired with one receiver
• Designed for outdoor mounting near mini-split condensers
• Factory-wired relay receiver, interface board, and contactor in a gasket-sealed enclosure
• Powered by 24VAC via an external transformer
• Typical communication range: 100 feet indoors
• Ideal for multi-room or multi-door applications
• Specifications:
• Input power: 24 VAC
• Wireless frequency: 902 MHz
• Sensitivity: –93 dBm typical
• Weatherproof housing with high/low separation barrier
• Voltage: 240/277 VAC
• Coil: 24 VAC
• Rating: 40A, SPDT

Technical Specifications

• Door Quantity: 1, 2, 3, 4
• Dimensions (W×H×D): 14.00" × 14.00" × 6.00"
• Product Weight: 3.09 lbs