Housed in an IP-67, the meter offers an easy-to-read screen and can store over 49,000 data sets. Measurements are easy with field-replaceable DO electrode modules and easy-to-use, screw-on cap DO membranes. Two models are available. The standard model measures dissolved oxygen, pH, conductivity, temperature, and ORP. The YSI 556 model with an internal barometer provides barometric pressure measurements in addition to the measurements taken by the standard model. The barometer can be user-calibrated, and measurements can be displayed with other data, used in dissolved oxygen calibrations, and logged to memory to track barometric pressure changes. The instrument is powered by 4 C batteries or an optional rechargeable battery pack (sold separately) with fast charge feature. An RS-232 cable comes with the unit for downloading data to a PC. The YSI 556 is compatible with Ecowatch for Windows data analysis software. |
