Features: Secure encrypted transmission module for analog video transmission ensuring real time protections against unauthorized access during drones operations, maintaining video integrity from Tx to Rx. Features plastic housing with double module system (Tx encryption/Rx decryption) using advanced algorithms to prevent signal interception in FPV setups. Ideal for drones enthusiasts, security professionals, and industrial users requiring confidentialed video transmission in data sensitive environment. Perfect for drones monitoring, remote inspections, and scenario demanding tamper proof analog video feeds between transmitters and receivers. Compatibles most analog video systems, delivers seamlessly integration without compromising transmission quality or latency. Specifications: High security Encryption key: 1~2^32 encryption and decryption board Short video transmission delay: 256.8us Synchronization time: not more than 1.5s Working voltages: DC7~14V Power consumptions: not more 0.6W Product size: about 37mm×37mm/1.45x1.45in Installation hole spacing: 30.5mm Product weight: not more 6g Working temperature ranges: -40~+60℃ Package Includes: 1PC Decryption module 1PC Encryption module 2PCs Adaptation cable note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution