SMAKN® SCM TTL to RS485 Adapter 485 to Serial Port UART Level Converter Module 3.3V 5V<div style="text-align: left;"><strong>[Product Information]</strong><ul><li id="replacementPartsFitmentBullet" class="aok-hidden" data-doesntfitmessage="We're not sure this item fits your " data-fitsmessage="This fits your "><span class="a-list-item"><span id="replacementPartsFitmentBulletInner"><a href="#" class="a-link-normal hsx-rpp-fitment-focus">Enter your model number</a>to make sure this fits.</span></span></li><li><span class="a-list-item"> 3.3V with 5.0V power supply perfectly compatible. </span></li><li><span class="a-list-item"> 3.3V with 5.0V signal perfectly compatible. </span></li><li><span class="a-list-item"> Operating temperature : -40 ℃ ~ + 85 ℃. </span></li><li><span class="a-list-item"> With RXD， TXD signal lights. </span></li><li><span class="a-list-item"> Transmission distance up to kilometers. </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41YbwCFSRtL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41GEWBTW9%2BL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/410HFC76enL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41nCy5JWdfL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41dlfb-TenL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41EQ5ZjtRWL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41yzAFb5ovL.jpg" noproxy>