Portable Dissolved Oxygen Meter LBN-PM131 Catalog

Portable Dissolved Oxygen Meter LBN-PM131 supports 1 or 2 point calibration using air-saturated water or zero oxygen solution. It is equipped with a backlit LCD display for clear visibility in low-light conditions. Integrated salinity compensation helps eliminate measurement errors across varying water types. Incorporated barometric pressure correction ensures accurate readings. Our Portable Dissolved Oxygen Meter has a built-in autoread function that senses and locks the measurement endpoint. 

Dissolved Oxygen Range	0.00 to 20.00 mg/L
Dissolved Oxygen Resolution	0.01 / 0.1 mg/L, Selectable
Dissolved Oxygen Accuracy	±0.2 mg/L
% Saturation of Oxygen Range	0.0 to 200.0%
% Saturation of Oxygen Resolution	0.1 / 1%, Selectable
% Saturation of Oxygen Accuracy	±2.0%
Calibration	1 or 2 Points
Temperature Compensation	0 to 50°C / 32 to 122°F, Automatic
Pressure Correction	60.0 to 112.5 kPa / 450 to 850 mmHg, Manual
Salinity Correction	0.0 to 50.0 ppt, Manual
Temperature Correction	Reading ±10°C/°F
Hold Function	Manual / Auto-Read Measurement Endpoint
Stability Criteria	Low / High
Calibration Due Alarm	1 to 31 days or off
Auto-Power Off	10 / 20 / 30 Minutes After Last Key Pressed
Ambient Temperature	0 to 50°C / 32 to 122°F
Relative Humidity	Less Than 80%
Memory	Stores Up To 500 Data Sets
Output	USB Communication Interface
Connector	6-pin mini-DIN
Display	Custom LCD (80 × 60 mm)
Battery Life	Approximately 150 Hours Without Backlight
Power Supply	3 × 1.5V AA Batteries or 5V DC Power Adapter
Dimensions	170 × 85 × 30 mm
Packing Dimensions	350 × 100 × 300 mm
Net Weight	300 g
Gross Weight	1.5 kg

Automatic temperature compensation

Auto-power off function

Reset function

Expanded memory storage

USB communication interface

Multi-mode power scheme

Portable Dissolved Oxygen Meter LBN-PM131 can be used to measure the water, wastewater, brine and other liquids.