Review on Decoder DC7 12V Reader Translator Display by Amrozi Papi

Four connectors: Straight key. (1) (2) 9VDC power supply. Pass through the audio input of the speaker (3) (4). All connections except the power connection are stereo.1. Direct key is an option. There is no sound, but the device does its best to give a correct reading to your first good one.2. 9V negative ground.3. Go through to speaker or headphones which went to input #44. Input from the output of a receiver or other source. The device requires a silent input with a perfect code. This means that you can basically work with a manipulator. The real world of an RF receiver where there is noise and/or bad code and you're getting mostly garbage. There are cell phone and PC applications that work with greater accuracy. I do not recommend this. To be fair, CW reader reviews, which cost a lot more, are basically like this review for over-the-air use. It's so cheap you won't miss much of what you want to see if you're lucky.