Benchtop Multi-Parameter Water Meter
Benchtop DO Water Quality Meter with USB/SD Datalogging
Benchtop Multi-Parameter Water Meter
Benchtop Multi-Parameter Water Meter
Benchtop Multi-Parameter Water Meter

Peak Instruments


Benchtop DO Water Quality Meter with USB/SD Datalogging

Preço normal $594.00 $0.00 Preço unitário por

Introducing our state-of-the-art Benchtop Dissolved Oxygen Water Quality Meter, the perfect solution for comprehensive water analysis.

This innovative instrument integrates advanced electronics, sensors and software design to accurately measure Dissolved Oxygen (DO) and other parameters, including EC, pH, TDS, temperature and more (with additional probes). Its compact and portable design makes it ideal for use in industrial and mining enterprises, power plants, labs and various environmental applications.

The meter is equipped with a built-in microprocessor, offering automatic calibration, temperature compensation (both manual and automatic), data storage, function settings, automatic shutdown and low voltage alarms. These intelligent features ensure ease of use and reliable performance in various testing conditions. The digital filtering and slip techniques enhance the meter's response speed and data accuracy, providing precise and trustworthy results.

The meter comes with a range of sophisticated features:

  • Elegant, functional design with 5 inch backlit LCD screen and wide 150° viewing angle
  • Compact bench cradle with rotary electrode holder saves space in lab
  • Small size and easy portability
  • Extendability: Additional electrodes can be installed to test conductivity,  dissolved oxygen and more
  • 3.5 mm jack input for easy electrode connection
  • USB and SD card interfaces for power and data transfer
  • Can store 300 pieces of data internally, including readings, date and time
  • Rechargeable, long lasting battery
  • Auto shut off if there is no operation in ten minutes

Complete DO kit includes:

  • L-512 Dissolved Oxygen Meter
  • DO electrode (ATC) with cap
  • Electrode holder and base
  • Electrolyte
  • Power adapter
  • USB thumb drive with users manual

Tablet Dimensions: 7.5" x 5" x 0.4" (190×130×10 mm)
Probe Arm Length: Approx. 16" (152 mm) fully extended
Weight: 10 oz. (280g)

Note: This item ships direct from the manufacturer. Please allow an additional 7-10 business days for order processing and shipment on all Peak instruments.


L-512 Benchtop Dissolved Oxygen Meter


5-inch LCD screen


Concentration, saturation, temperature

DO Range

0.00 ~ 20 mg/L (ppm)



DO Accuracy


DO Saturation

0.0 ~ 200%

Saturation Resolution


Saturation Accuracy 


Temperature Measuring Range


Temperature Resolution


Temperature Accuracy

5 ~ 60: ±0.5, Others: ±1.0

Temperature Compensation Range

(0 ~ 100)(automatic)

Salinity Compensation Range

(0.0 ~ 50.0)g/L

Air pressure Compensation Range

(80 ~ 105) kPa (automatic)

Pressure Resolution


Pressure Accuracy




Response Time

≤30s (25, 90% response)

Data Storage

300 data, external USB storage

Communication Interfaces


Working Conditions

Temperature:5 ~ 40°

Humidity: 5 ~ 85%

Power Requirements

DC 5V/1A

Size &Weight


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