Safe 433MHZ Wireless Remote Control Duplicator for Car Gate Garage Door Features: 1. Remote control duplicator RT433 will provide you some backup remotes via clone original remote. 2. RT433 is widely used in home alarm , panic, buttons, garage door, rolling curtain, etc. 3. Delicate and nice appearance, 4 control button 4. Adopt the radio frequency technology, long transmitting distance,high transmitting sensitivity, no signal obstruct Specifications: Condition:   Color: Black Material: Plastic Size: Approx. 6.8cm x 4cm x 1.6cm ( Length*width*Height ) Work Voltage: DC 12V Work Current: ≤ 12mA Transmitted Power: ≥10mW Work Frequency: 433 MHz Transmitting Distance: within 80M ( open space) Battery: 2pcs CR2016 Button Batteries (Not Included) Work Temperature: -20℃~70℃ Storage Temperature: -10℃~50℃ Humidity: under 85% Occasion: home/ shopping mall burglar alarm , electrombile/car/motorcycle alarm, door&window controler , other industry control. User Manual: The Chipset Compatibility:   2260 (all the manufacturers) 2262 (all the manufacturers) PT 2264 / 2240 / 5326 (all the manufacturers) SC5262, HT/600 / 6P20B / 680 / 6207 / 6010 / 6012 / 6014, SMC918 Series, 527 (all the manufacturers)  1527 (all the manufacturers) 2240 (all the manufacturers) HCS101/ 200 / 201 (Parts of code)  HCS300 / 301 (Parts of code) Parts of single chip... How e: 1. Erase the code 1) Press button A and B at the same time until LED flash 2) Release button B and keep pressing button A , then press button B 3 times, LED flash fast indicate succeed to clean code (can release button A now) 2. Duplicating 1) Put duplicator aside of original transmitter , as close as possible  2) Press and hold button A of original transmitter and button A of duplicator at the same time, until duplicator's LED flash and keep lighting. 3) Release both buttons, finish code copy , copy other button in the same way. 3. Resume  Press and hold button C and D for 3 seconds, the LED flash , OK all buttons return back to the latest copy codes. Package Included: 1 X 4-Channel Remote Control (Battery is not included) Please Note: 1. Please check the size measurement chart carefully before making payment. 2. Please allow 0.5-1 inch difference due to manual measurement.(1 inch=2.54cm) 3. The color of the actual items may slightly different from the listing images due to different computer screen, thanks for your understanding. 4. Instruction is not included.