Product Parameters:
Universal remote control kit for garage door opening and signal copying, supplied as a 4-pack. Each remote control operates at 433 MHz, specifically 433.92 MHz, with a rated voltage of DC 12V. The built-in battery type is 12V 27A and is included. Each unit measures 54 x 29 x 14 mm and weighs 28 g. The design shown features a compact body in black and silver tones, a protective sliding cover, four control buttons, and a keychain hook for daily transport.

Core Features:
This model is designed to clone and duplicate existing remote controls for multiple control applications. The ABCD four-button layout can copy four different chip types, allowing one remote control to manage four different devices or systems. It offers high copying accuracy and high copying efficiency, with a very small error in copying data code and copying oscillation resistance. The plated surface is described as durable and resistant to fading. Please note that it only works for 433 MHz devices and cannot copy rolling code signals.

Applicable Scenarios:
Suitable for duplicating existing remote controls used for cars, sunroofs, garage doors, gates, heating systems, and home automation equipment, based on compatible 433 MHz fixed code usage. In open areas, the transmission distance is stated to be 50 to 100 m, making it suitable for daily access control and routine remote control where a compact handheld controller is needed.

Product Summary:
This 4-piece universal 433 MHz remote control kit combines compact size, four-button copying for multiple devices, and portable keychain design. It is intended for users who need to duplicate an existing 433 MHz remote control for convenient daily control, while keeping in mind that rolling code remotes are not supported.