Handheld Multiparameter Instrument

The 556 MPS handheld instrument has been discontinued and Xylem Analytics - YSI  is no longer accepting orders for this instrument. However, we will continue to support existing 556's for the next 5 years. We recommend The Professional Plus (Pro Plus) or ProDSS handheld instruments as suitable replacements.

Instrument Only. Cables, probes/sensors, and accessories sold separately.

Featuring a waterproof IP-67, impact-resistant case, the YSI 556 MPS simultaneously measures dissolved oxygen, pH, conductivity, temperature, and ORP. Or, simply purchase the cable to measure DO, conductivity, and temperature if needed. The YSI 556 MPS conforms to GLP standards.

Multiparameter Instrument (carrying case (5061) and PC adaptor RS-232 included) used with the 556 handheld instrument.

Battery Options: The unit is powered by alkaline batteries or an optional rechargeable battery pack (YSI Part # 6118) with fast charge feature. (556-02)

Optional Barometer: Internal barometer can be user-calibrated and displayed along with other data, used in dissolved oxygen calibrations, and logged to memory for tracking changes in barometric pressure.

Carrying Case: The instrument comes standard with a soft-sided carrying case with enough space for the YSI 556 MPS, a 20-meter cable, and calibrating supplies.

• Field-replaceable DO, pH, and pH/ORP probes
• RS-232 and Compatible with EcowatchTM for WindowsTM data analysis software
• Easy-to-use, screw-on cap DO membranes
• User-upgradable software from YSI website
• Three-year warranty