Free chlorine, total Chlorine measurement. Measuring principal : Photo meter method. Light source : LED, 525 nm.
Record Max, Min. value.
Free and total 1.0 mg/L standard solution are the standard accessories.
The measuring method is an adaptation of the USEPA Method 330.5 and Standard Method.
Range: 0 to 3.5 mg/L (ppm)
Power: 1.5 V battery (UM-4/AAA) x 6 PCs.