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Model: 8836RHLD-WXWireless Water Heating Thermostat - Receiver terminal can connect with external antenna. - Wireless RF two-way connection, transmit range is far. - Powered by: Two AAA batteries. - Linkage function is available. - Faceplate Size: 86mm*86mm*15mm - Receiver Size: 91mm*60mm*27mm - Faceplate Weight: 120g - Receiver Weight: 120g Versatile HVAC solutions with customizable options. See full specs for details. 
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1. Button Locking - Prevents accidental adjustments. 2. Advanced Options - Customizable settings for specialized use cases. 3. Low-Temperature Protection (Optional) - Automatically turns ON heating when the system is OFF and room temperature drops below the set protection limit. Turns OFF once above the limit (Configurable in Advanced Settings; default OFF). 4. High-Temperature Protection (Optional): - Automatically forces heating OFF if an *external sensor* detects temperature above the set protection limit. Resumes heating once below the limit (Requires dual sensor configuration and external sensor). 5. Sensor Fault Diagnostics: - Automatic "Err", "E1", or "E2" error display and heating shutdown if a sensor fails. Heating resumes after fault correction. |
