• Field and BOD probes availabe
• Convenient screw-on cap-style membrane
• Stores 250 data sets with time/data stamp

This meter delivers accurate, reliable readings at a great price. Simultaneously display temperature and dissolved oxygen (% or mg/L) on the large LCD. User prompts and mode indicators guide you through calibration and measurement.

Enter barometric pressure and salinity (ppt) manually during calibration; automatic temperature compensation ensures high accuracy in fluctuating temperatures. Mechanical buttons (instead of less durable membrane keypads) offer long operation. Housing is IP67-rated waterproof when connector cap is installed. Unit features a 250-point memory with time/date stamp and data output via USB.

Includes: 9V battery, USB cable and instructions. Probes not included; order stock # 40130 or 40131 separately.

• Dissolved oxygen (ppm or mg/L) range/resolution/accuracy: 0 to 20.00 ppm (mg/L) / 0.01 ppm (mg/L) / ±2% of rdg or ±0.2 ppm (mg/L), whichever is greater
• Dissolved oxygen (% saturation) range/resolution/accuracy: 0 to 200% / 0.1% / ±2% of rdg or ±0% of air saturation, whichever is greater
• Temperature range/resolution/accuracy: -6 to 46°C / 0.1°C / ±0.3°C ±2 digits
• Memory function: 250 data points