Lutron PWH-303 Water Hardness Meter 
 
Water Hardness Meter 
Model: PWH-303 
Lutron – Taiwan 
 
Key Futures:
* Separate Pt glass electrode, high performance for pure water low conductivity measurement.
* Measurement water conductivity : 0 to 1999 uS .
* Measurement water hardness : 0 to 1000 ppm.
* Separate Meter with the probe, easy operation.
* Hold , Record ( max., min.).
* DC 1.5V battery ( UM-4/AAA ) x 4.
* Water conditioning , aquarium , food processing, photography , school ,laboratory, industrial and quality control.