DL-RXB3BV-433M is a wireless module manufactured by DreamLNK. It is an RF receiver designed to receive signals from RF transmitters operating in the 433 MHz frequency range. The module is a single-channel, low current, low power device designed for use in wireless systems. It is RoHS-compliant, meaning that it contains no hazardous substances like lead or mercury. The module has a maximum operating voltage of 36V, a maximum transmission power of 5mW, and a transmitter modulation type of ASK/FSK/OOK. The module features high accuracy measurement, low-cost design, and fast response time. In addition, it supports AES-128-bit data encryption.