Lutron DO Meter DO-5510
Lutron DO meter Model DO-5510- Microprocessor circuit, LCD with annunciator- DO Range : 0 to 20 mg/ L _ temp : 0 to 50 C- MAX, MIN, Memory recall button-DO, Oxygen in air, Temp. ATC, auto calibration, % Salt, RS-232- Head diaphragm set & electrolyte includedal