Source google image: https://www.picclickimg.com/00/s/OTYwWDEyODA=/z/-JsAAOSwjk9ZVTGB/$/Ics-Medical-T-600-Chart-Isolation-Transformer-_1.jpg
Isolation t-600
Source google image: https://www.picclickimg.com/00/s/OTYwWDEyODA=/z/-JsAAOSwjk9ZVTGB/$/Ics-Medical-T-600-Chart-Isolation-Transformer-_1.jpg