Ozoni Zosankha Zosankha: Zida Zonyamula Q-03-1 Ozone colorimeter yonyamula Q-03-2 Ozone colorimeter yonyamula T-CP40 Portable Colorimeter ya Madzi Akumwa T-SP80 Pooltest Portable Colorimeter T-6800 Multi-parameters Portable Colorimeter Zida za Lab Z-T700 Intelligent Multi-parameters Analyzer Z-D700 Multi-parameter Analyzer