Envco – Environmental Equipment

Featuring a waterproof, impact-resistant case, the YSI 556 MPS simultaneously measures dissolved oxygen, conductivity, temperature, and optional pH and ORP. A simple cellular phone style keypad and large display make the instrument easy to use. The YSI 556 MPS is compatible with YSI EcoWatchTM for WindowsTM software.

The YSI 556 MPS assists the user in conforming to Good Laboratory Practice (GLP) standards which help ensure that quality control/quality assurance methods are followed. Battery life is displayed with a fuel gauge, and the user can choose standard alkaline batteries or an optional rechargeable battery pack.

The 1.5 MB memory can store more than 49,000 data sets. Other options include a flow cell and barometer. The 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.

• Field-replaceable electrodes
• Compatible with EcoWatch® for Windows® data analysis software
• Stores over 49,000 data sets, time and date stamped, interval or manual logging
• Three-year warranty on the instrument; one-year on the probes
• GLP assisting, records calibration data in memory
• Available with 4, 10, and 20-m cable lengths
• IP-67, impact-resistant, waterproof case
• Easy-to-use, screw-on cap DO membranes
• RS-232 interface for PC connection

Ordering Information
556-01 Instrument (with 5061 large, soft-sided carrying case)
556-02 Instrument with barometer option (with 5061 carrying case)

5563-4 4-m cable and DO/temp/conductivity
5563-10 10-m cable and DO/temp/conductivity
5563-20 20-m cable and DO/temp/conductivity

5564 pH Probe for any 5563 cable
5565 pH/ORP Probe for any 5563 cable

6118 Rechargeable battery pack kit (includes battery, adapter, charger)
614 Ultra clamp, C-clamp mount
616 Charger, cigarette lighter
4654 Tripod (small tripod for instrument)
5060 Small carrying case, soft-sided (fits instrument and 4-m cable)
5065 Form-fitted carrrier with shoulder strap
5080 Small carrying case, hard-sided (fits instrument, 4-m cable, flow
cell, batteries, membrane kit, calibration bottles)
5083 Flow cell
5085 Hands-free harness
5580 Confidence Solution® (insure probe accuracy with a simple fieldcheck
for conductivity, pH, and ORP)