This circuit utilizes resistance to measure dissolved solids in water. The more resistance the less conductive the water. And conversely, the less resistance the more conductive the water. Results are displayed by a series of (8) LED's. This kit may be assembled without soldering on any Global Specialties trainer or Proto-Board® (not included), or by soldering to the included PCB. Parts and assembly instructions included.
- Power Supply 9 VDC (not included)
- LED Resistance Level Indicators 7
- LED On/Off Indicator 1
- Level Adjustment 3 levels
- PCB Dimensions 2.78 x 1.79 in.