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  • Somfy Ondeis WireFree RTS Rain & Sun Sensor (SO9019617) — Specifications

    September 08, 2026 2 min read

    Product specifications for the Somfy Ondeis WireFree RTS combination rain and sun sensor for RTS motorized awnings, shutters, and screens.

    Full text manual (for reference)

    Product specifications for the Somfy Ondeis™ WireFree RTS Rain & Sun Sensor (Part #9019617) — a solar-powered combination rain and sun sensor for Radio Technology Somfy® motorized awnings, rolling shutters, and screens.

    Overview

    The Ondeis™ WireFree RTS is a solar-powered combination rain and sun sensor compatible with RTS motorized exterior products. It monitors rain and sun levels and automatically activates RTS motorized products once user-selected thresholds are passed.

    Features

    • Combination rain and sun sensor
    • Controls one channel of RTS motorized products
    • Solar-powered rechargeable battery
    • Adjustable rain and sun thresholds
    • Wireless installation with flexible mounting options
    • Demo mode for testing configurations
    • Two easy-to-read LED indicator lights

    Six Available Modes of Operation

    • Awning Rain (default)
    • Awning Sun (requires Telis Soliris Transmitter)
    • Awning Rain & Sun (requires Telis Soliris Transmitter)
    • Shutter/Screen Rain
    • Shutter/Screen Rain & Sun
    • Shutter/Screen Rain & Auto Up

    Technical Specifications

    Power Solar powered
    Material ABS
    Dimensions 4.53"L (115mm) x 2.60"W (66mm) x 1.97"D (50mm)
    Maximum Range 65 ft under optimal conditions
    Rain Sensitivity Lowest setting (fully CCW): reacts to very light rain (2–4 drops, 1–2mm within 1–2 sec) or heavy condensation/fog. Highest setting (fully CW): reacts only to very heavy rain (1–2" per hour).
    Sun Sensitivity Threshold adjustable from 0.5 (CCW) to 50 klux (CW)
    Operating Temperature 32°F to 140°F (0°C to +60°C)
    Storage Temperature -4°F to 140°F (-20°C to +60°C)
    Frequency 433.42 MHz
    Shipping Weight 1 lb
    IP Rating IP44
    Approvals FCC

    What's In the Box

    • Ondeis™ WireFree RTS Optical Rain & Sun Sensor with mounting plate and 2 round-head wood screws
    • Gutter mount kit: 1 aluminum gutter-mount bracket, 2 socket head screws

    Optional Accessories

    • Telis 1 Soliris (#1810647)
    • Telis 4 Soliris (#1811243)

    Connections and Indicators

    Element Function
    Optical Rain Sensor Senses rain levels
    Sun Sensor Senses brightness levels
    Solar Charging Panel Charges the battery
    Mounting Plate Allows easy wall, pole, or gutter mount
    Hatch Protects the dials and switches
    Rain Sensor LED Visual feedback of the rain function
    Sun Sensor LED Visual feedback of the sun function
    Rain Threshold Dial Sets rain sensing threshold level
    Sun Threshold Dial Sets sun sensing threshold level
    Demo Button Tests/demonstrates settings
    Programming Button Used for RTS programming
    Configuration Switches Mode selection
    Switch Sticker Covers the Shutter/Screen mode switches

    © Somfy Systems, Inc. — D-0038