Portable Multi-parameter Water Quality Meter LD-LMPWM-B10

SKU: LD-LMPWM-B10

Portable Multi-Parameter Water Quality Meter LD-LMPWM-B10 is a modular water quality monitoring system designed for comprehensive measurement of multiple water quality parameters. It supports up to seven interchangeable probes and features an automatic cleaning wiper for reliable long-term monitoring in environmental, aquaculture and industrial water applications.

✓ Modular multi-parameter configuration for flexible monitoring
✓ Supports up to seven interchangeable sensor probes
✓ Automatic wiper system helps reduce sensor fouling during extended deployment
✓ Replaceable digital sensor design simplifies sensor maintenance
✓ Suitable for continuous and unattended water quality monitoring
✓ Robust construction for field and submerged applications
✓ Multiple communication and integration options

Also available in:

pH mode :

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Measuring principle	Electrode method
Measuring range	0-14
Measuring accuracy	±0.1
Resolution	0.01
Temperature compensation	Yes
Working temperature	0-50℃
Storage Temperature	0-60℃
Calibration way	Two or three point calibration

COD

Measuring principle	Spectrophotometric ultraviolet absorption
Measuring range	0.1~200mg/L ( equiv. KHP)
Linearity	±2% or 0.5 mg/L take the bigger(equiv. KHP)
Resolution	0.1mg/L (equiv. KHP)
Working temperature	0-50℃
Storage Temperature	-20C~+60℃
Calibration way	One or two point calibration

ORP

Measuring principle	Electrode method
Measuring range	-1999~+1999mV
Measuring accuracy	±20mV (standard solution)
Resolution	±0.1mV
Temperature compensation	Yes
Working temperature	0-50℃
Storage Temperature	0-60℃
Calibration way	One point calibration

NH4+

Measuring principle	Composite ion electrode method
Measuring range	0~10/100/1000mg/L for option
Linearity	10% or ±0.2mg/L take the bigger
Resolution	0.01mg/L-0.1mg/L (according to the range)
Temperature compensation	Yes
Working temperature	0-50℃
Storage Temperature	-20C~+60℃

DEPTH

Measuring principle	Pressure sensitive method
Measuring range	200m (effective measurement depth of the electrodes is 60m)
Measuring accuracy	＜±0.05 %F.S
Resolution	0.001m
Calibration way	One point calibration

Power

DC 12~24V

Weight

2.5 kg

Dimension

φ88mm x 548mm (length)

Turbidity

Measuring principle	Scattered light measurement/Optical
Measuring range	0.01-4000NTU
Measuring accuracy	0-10NTU: ±0.1NTU 10-100NTU: reading value±2% or ±0.1NTU the bigger one; 100-4000NTU: reading value±5%
Resolution	0-10NTU: 0.01NTU 10-100NTU: 0.1NTU 100-4000NTU: 1NTU
Temperature compensation	Yes
Working temperature	0-50℃
Storage Temperature	-20C~-60℃
Calibration way	One or two point calibration

Chlorophyll

Measuring principle	Fluorescence method/Optical
Measuring range	0-400ug/L or 0~100RFU
Linearity	R²>0.999
Resolution	0.01ug/L
Working temperature	0-50℃
Storage Temperature	-20C~+60℃
Calibration way	One or two point calibration

Data Output

RS 485. Modbus; Bluetooth(Optional)

TEMPERATURE

Measuring principle	Thermistor method
Measuring range	0-50℃
Measuring accuracy	±0.2℃
Resolution	0.1℃
Working temperature	-5C~+50℃
Storage Temperature	-20C~+80℃
Calibration way	One point calibration

CONDUCTIVITY

Measuring principle	Four-electrode method
Measuring range	0-200mS/cm
Measuring accuracy	0-100: reading value±0.5% 100-200: reading value±1%
Resolution	1μS/cm-100μS/cm (according to the range)
Temperature compensation	Yes
Working temperature	0-50℃
Storage Temperature	-20C~+60℃

Cable Length

5m standard cable, other length can be optional;

Main Material

POM+316 Stainless Steel
O ring: viton ring+ rubber ring
Cable: PVC

Pressure Range

Sensor Probe ≤0.6Mpa; Sensor Body ≤2Mpa

Waterproof Rate

IP68

Blue-Green Algae

Measuring principle	Fluorescence method/Optical
Measuring range	0-100ug/L or 0~100RFU
Linearity	R²>0.999
Resolution	0.01ug/L
Working temperature	0-50℃
Storage Temperature	-20C~+60℃
Calibration way	One or two point calibration

Dissolved Oxygen

Measuring principle	Fluorescence method/Optical
Measuring range	0-200% saturability 0-20mg/L
Measuring accuracy	0-100%: <±1% 100-200%: <±1.5%
Resolution	0.001mg/L-0.01mg/L (according to the range)
Temperature compensation	Yes
Working temperature	0-50℃
Storage Temperature	-20C~+60℃
Calibration way	One or two point calibration

Guarantee Period

Sensor Body 12 months; pH/ORP probe 12 months;
Ion sensor: 6 months; DO fluorance cap 6 months.

Internal Storage

8M (Optional)

Storage Temperature

-20~+60℃（pH/ORP storage temperature 0～60℃）

Working Temperature

0~50℃

Measuring parameters

Standard: Temperature, Conductivity, pH, ORP, Turbidity, Dissolved Oxygen
Optional: Depth, Chlorophyll, Blue-green Algae, COD, fDOM, Salinity, TDS, NH4+, NO3-, K+, Fu- and etc.

Suitable for rivers, lakes, reservoirs, groundwater, aquaculture, drinking water sources, environmental monitoring, industrial and process water, and long-term unattended water-quality monitoring.

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