Remarks The VCC voltage must be consistent with the working voltage of the module, and the power supply must be filtered;the antenna has a great influence on the receiving effect of the module, it is best to connect a 1/4-wavelength antenna, generally a 50-ohm single-core wire is used, and the length of the antenna is 433M About 17cm;The position of the antenna also affects the receiving effect of the module. When installing, the antenna should be as straight as possible, far from the shield, high voltage, and interference source;the receiving frequency, decoding and oscillation resistance should be matched with the emission during use.Rectangle:receiving module:model:MX-05Vvoltage:DC5VQuiescent current:4MAReceiving frequency:433.92MHZReceiving sensitivity:-105DBExternal antenna:32CM single core Wire, wound into a spiral transmitter headSquare:Transmitting module:model:MX--03VTransmission distance:20-200 meters (different voltage, different effects)voltage:3.5-12VWorking mode:AMtransmission Rate:4KB/STransmitting power:10mWTransmitting frequency:433MExternal antenna:25cm ordinary multi-core or single-core wire.Pin arrangement from left to right:(DATA; VCC; GND)Application environment:remote control switch, receiving module, motorcycle, Car anti-theft products, home anti-theft products, electric doors, rolling doors, windows, remote control sockets, remote control , remote control audio, remote control electric doors, remote control garage doors, remote control retractable doors, remote control rolling gates, sliding doors, remote control door openers, door closers, etc. Door control system, remote control curtain, alarm host, alarm, remote control motorcycle, remote control electric car,etc.Depending on the productbatch, PCB board parts may be different, but the function is the sameColour:As ShownMaterial:PC+MetalSize:Transmitting module:30x14x7mm,receiving module:19x19mmPackage Contents:10Set * 433M Super Regenerative ModuleOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.