Reliably measure dissolved oxygen (optical/polarographic) and temperature with the Orion™ Star™ A223 RDO/DO Portable Meter for advanced field analysis.

• Informative, easy-to-read backlit graphic display with clear onscreen instructions simplifies operation
• Capture critical readings with measurement stability indicator and selectable read modes
• Auto-Read mode holds a stable reading and continuous mode shows changing readings with hold option
• Data log collects and date/time stamps up to 1000 measurement sets
• Non-volatile meter memory ensures data and settings are protected, even with loss of power
• IP67-rated housing is waterproof for rugged field operation
• Three-year meter warranty

Record accurate and reliable dissolved oxygen and temperature measurements with the Orion™ Star™ A223 dissolved oxygen and RDO portable meter.

Don't leave measurements to chance when analyzing samples outside the lab. Orion™ Star™ A223 RDO/DO portable meters are designed to provide the reliability needed in a user-friendly package for dedicated dissolved oxygen testing needs. This waterproof portable meter displays critical data with measurements, including temperature, date and time, read type, measurement stability, active calibration information, and power source status. Measure dissolved oxygen in percent saturation or mg/L with temperature using Orion RDO optical DO probes or Orion polarographic DO probes. Automatically compensate dissolved oxygen readings using ATC temperature, manual salinity input and built-in barometer for barometric pressure readings. Flexible power options with AA batteries or optional universal power adapter.

The unit is ideal for a wide range of applications and advanced dissolved oxygen analysis in the field. Use RDO optical or polarographic DO probes and calibrate using water-saturated air, air-saturated water, custom value (Winkler), or zero point options. Log up to 1000 data point sets with time/date stamp and easily transfer via USB or RS232 to a printer or computer. Waterproof meter ensures durable, rugged performance with an IP67-rated housing.