Compact, rugged design with large, easy-to-read digits. Fisherbrand Traceable Portable Dissolved Oxygen Meter Pen has a water-resistant design with O-ring seal and membrane keypad which assures a long life in severe lab or harsh plant environments. DISSOLVED OXYGEN METER PEN DO 0MG/Lto 20mg/L, accuracy 0.4mg/L temp 0C to 50C, accura

Traceable to NIST™ standards. DISSOLVED OXYGEN METER DO 0MG/L TO20mg/L, accuracy 0.5mg/L temp 0C to 60C, accuracy

Take simple dissolved oxygen and temperature measurements with the Thermo Scientific™ Orion™ Star A123 DO Portable Meter with easy operation for basic field testing KIT STAR A123 DO PORTABLE

Reliably measure dissolved oxygen (optical / polarographic) and temperature with the Thermo Scientific™ Orion™ Star A223 RDO / DO Portable Meter for advanced field analysis RDO/DO METER ORION(R) STAR(R)A223 portable, waterproof, LCD display, 4 calibrat

Accurately monitor dissolved oxygen (optical / polarographic) and temperature with the Thermo Scientific™ Orion™ Star A323 RDO / DO Portable Meter for challenging field testing RDO/DO PORTABLE METER ORION(R)Star(R) A323 portable, waterproof, LCDdisplay, 4

Ideal for mobile applications in the laboratory, at-line, and outdoors Portable Dissolved Oxygen Meter S9-Standard kit

Ideal for mobile applications in the laboratory, at-line, and outdoors Portable Dissolved Oxygen Meter S4-Meter only

Portable meter provides reliable and high quality dissolved oxygen (DO) measurements with simple click of a button 1UNIT Portable Do meter FiveGO F4-Standard Kit

Measure DO, salinity, conductivity, specific conductance, TDS, barometric pressure and temperature DO/Temp cable for Pro 20 and Professional Plus 30