YSI 556 Multiprobe Water Quality Meter Radiation & EMF Meters The 6712C compact model gives

The 6712C compact model gives you the world's most versatile sampler controller in a smaller-diameter package that fits in 18'' and offset manholes

With 5 bright LED lights on 3 sides of the instrument

or a standard sensor for simple sampling

and direct functional bump test indication of more than 700 monitors

YSI 556 Multiprobe Water Quality Meter Radiation & EMF Meters The 6712C compact model givesRugged and reliable, the YSI 556 MPS water quality analyzer (Multiprobe system) combines the versatility of an easy to use, easy to read handheld unit with all the functionality of a multi parameter system. Featuring an IP 67, impact resistant case, the YSI 556 MPS simultaneously measures dissolved oxygen, pH, conductivity, salinity, temperature, and ORP. This monitor is designed for water quality applications and mainly used in the environmental