Paperless Recorder-Data logger 1.3 channels/USB/Relay/RS485/RS232 ... 4.CE Toky DX2100 is the low cost yellow screen paperless recorder (160X80mm, 3 channels), used the advanced technology, to be ... , we supply high quality and performance quality, paperless recorder, data logger, temperature recorder, paperless chart recorder. DX2100 Chart Recorder / Paperless Recorder / Temperature Recorder