3/40S Chlorine Disc (4.0 mg/l)

• Easy to use, visual assessment of the sample – simply rotate disc for colour match
• Manufactured for longevity of use
• Optional lighting units for guaranteed lighting conditions 24 hours a day
• Optional Nessleriser systems for longer path lengths

Disc Parameter Reading
1.0, 1.2, 1.4, 1.6, 1.8, 2.0, 2.5, 3.0, 4.0