BroadLink | Broadlink RM MAX+ Temperature Humidity Sensor IR RF WiFi UNIVERSAL REMOTE TV AC Smart Home Automation with Alexa Google

Broadlink RM4 max Universal Intelligent Remote Controller Smart Home Automation WiFi+IR+RF Switch For IOS AndroidControlling 433MHz \315MHz RF （433Mhz/315Mhz（without encryption and fixed code））devices llike curtain\shades motor,light switch...Local IR code for faster responseCompatibility of RM4 max:WiFi Router: RM4 max supports 2.4 GHz (not 5 GHz) Wi-Fi for configuration in the App, does not support mesh router. The Wi-Fi password should contain no more than 32 characters and no special characters which are not available on standard keyboard layout.IR control: RM4 max supports IR 38KHz devices. Since IR signals can only be received in the absence of obstacles, please make sure there are no obstacles between the RM4 max and your IR device.RF control: RM4 max supports RF 433MHz fixed code controlled devices, does not support RF Rolling Code control or learning. Please check the User Manual or Instruction before purchasing to make sure your RF device is NOT a Rolling Code. Generally, the remote control that needs to be paired for the first use is Rolling Code.Package includes: 1x RM4 max Universal Remote, 1x USB Sensor Charger Cable, 1x Mounting board, 1x Manual.Why RM4 max Does Not Support Rolling Code?A rolling code (or hopping code) that changes for every use is commonly used in radio frequency (RF) control systems especially those requires access control or privacy protection. It is a simple encryption method to prevent attackers from controlling electrical devices easily. This is usually applied on some brands of curtain/blind/shade motors to provide higher privacy protection.With this principle, even RM4 max can successfully learn the RF code, it will be unable to control rolling code RF device. Actually this is not a fault of BroadLink's device or software but the mechanism of rolling code prevents it working as it was intentionally designed for security and privacy.Generally, the remote control that needs to be paired for the first use is Rolling Code. Please kindly check the User Manual or Instruction before purchasing to make sure your RF device is NOT a Rolling Code. If you are not sure, please provide us with the Brand and Model so we can check it for you.