Resilight RES7031-20K, 20K Ohm Water Quality/Resistivity Indicator Light
- The monitoring is simple: the green light indicates the water conductivity is below the threshold value, the red light warns that it is above
- 20K ohm/cm resistivity light
- 1/2" MPT
- Uses a wall transformer to convert 100-240 VAC to 9 VDC to insure safer operating and longer life
- Reliable and economical method of monitoring water quality via conductivity
- LED output and solid state circuitry utilizes a symetrical squarewave sampling voltage to eliminate plating and extend electrodfe life
- The LED output and solid state circuitry will outlast conventional neon lamps by thousands of hours.
| Resistance (ohm•cm) | Conductance (µS/cm) | ~ TDS ±15% (ppm) |
| 1 Meg ohm | 1 | 0.5 |
| 500k | 2 | 1.0 |
| 200k | 5 | 2.5 |
| 50k | 20 | 10.0 |
| 20k | 50 | 24.0 |
| 10k | 100 | 48.0 |
