Need Help with Short Path Distillation

[nocarrier]

Budget Digital Vacuum Sensor, read a 60$ pirani gauge through your PC

In the hunt for a reasonable budget vacuum gauge @JacobsLadder was kind enough to mention the MKS 901p sensor and provide some information to help me get it working properly. This gauge can be easily purchased on ebay for quite cheap, around 55$ shipped. The transducer easily communicates over serial port to a PC. This requires 2 wires for serial communication, and a separate power supply that ranges from 9vdc to 30vdc. You want to choose a power supply with a very low power output. I searc…

You can get a used 900 dollar sensor on eBay for 50 bucks.