YSI 556 Multi-Parameter Water Quality Meter

The YSI 556-02 multi-parameter display features an internal barometer, making dissolved oxygen calibrations quick and easy.

The YSI 556-01 multi-parameter display provides a user-friendly interface for obtaining high accuracy water quality measurements.

The 5563-20 cable assembly is ideal for bridge work, lake sampling, and applications requiring an extended cable length.

The 5563-10 cable assembly is perfect for applications where an extended cable length is sometimes necessary.

The 5563-4 cable assembly is great for stream work and other applications where a shorter cable length is desirable.

Included with the purchase of a 5563 cable assembly, the 5560 sensor provides reliable temperature and conductivity readings.

The YSI 5083 flow cell is ideal for use in applications when it is impossible or undesirable to submerge the probe module into the sample.

The 6118 rechargeable battery pack kit is an alternative to using standard C-cell alkaline batteries in the YSI 556.

The YSI 5565 features simple, accurate pH and ORP measurement in a sensor designed for minimal maintenance.

The YSI 3076 flow cell is ideal for use in applications when it is impossible or undesirable to submerge the probe module into the sample.

The YSI 3059 flow cell is ideal for use in applications when it is impossible or undesirable to submerge the probe module into the sample.

YSI's 5080 hard-sided Pelican carrying case is designed for use with the YSI 556 instrument and accessories.

The YSI 5564 pH sensor provides long life, good response time, and accurate readings in most environmental waters.

Included with the purchase of a 5563 cable assembly or 550A DO meter, the 559 dissolved oxygen sensor provides reliable DO readings.

Large, soft-sided carrying case with pre-cut foam insert for the YSI 556. Comes standard with the purchase of a 556 instrument.

Included with the purchase of a YSI 556 handheld display, the 5568 PC interface cable allows you to upload data from your 556.

This form-fitted case fits snugly over the YSI 550A, 556, or 650 for an inexpensive way to protect and carry your investment.

Included with the purchase of a 5563 cable assembly, the 5511 maintenance kit includes everything necessary for 556 sensor maintenance.

Hands-free harness for the 550A, 556, or 650 display offers convenient carrying in the field.

The ultra c-clamp allows customers to conveniently attach the display to the edge of a table or boat for hand-free operation.

The 5084 flow cell maintenance kit is an O-ring maintenance kit for the YSI 5083 flow cell.