Monitoring the acid rain acidity principle circuit diagram

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The drain-source resistance Q1 in the monitor schematic depends on the acidity of the gate sample presented to Q1. This variable resistor changes the current through the bridge, and the current is proportional to the pH.

24V Switching Wall Charger





24V Switching Wall Charger

24v switching wall charger

About this item

  • Input: AC 100-240V 50/60Hz; Output: DC 24V Switching wall charger
  • Plug Type: DC Plug 5.5 x 2.1mm;AC Plug US Plug, Cable Length: 1.2m /1.5m
  • Dimensions (WxLxH): 4.7" x 2" x 1.5", Small and lightweight for convenience, portability and storage. Easy to take anywhere!
  • Built-in protection of over current, over voltage, short circuits
  • This Power Adapter can ensures consistent power and reliable performance for your devices. Can work for 5050 3528 LED Strip 3D Printer CCTV Security System LCD Monitor.









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