Water proof and one of the easiest to use multi-parameter water quality handheld on the market!
EPA approved for drinking water and wastewater compliance reporting!
Notice: YSI® 556 Series Handhelds
YSI® Discontinued the 556 Series Handhelds
Effective February 2016
All YSI® 556 Series Cables Includes:
Dissolved Oxygen (DO) and Temperature/Conductivity Sensor Probes, DO Membrane Kit (blue caps), Maintenance Kit, Metal Ventilated Probe Guard, and Clear PVC Calibration Cup
All 556 sensors and probes are field-friendly and do NOT require tools!
Amplified Sensors are ideal for high static applications, very cold waters, and long term field studies where sensor probe connectors may be subject to moisture.