Name: Portable Multi Parameter Water Quality Meter with 5-in-1 Digital Sensor
SKU: L111M07

Portable Multiparameter Water Meter with Digital Sensors for pH, optical DO, turbidity, conductivity/salinity, Temp.

The L111M07 multi parameter water quality meter is equipped with a 5-in-1 digital multi-parameter sensor, which can simultaneously measure and display temperature, optical dissolved oxygen(DO), turbidity, conductivity/salinity, and pH, and also supports optional probes for chlorophyll, blue-green algae, and oil in water. The L111M07 high-end multi parameter water quality meter features a robust memory for 4096 records, supports both manual and automatic data logging, and allows quick USB data export for further analysis. Thanks to the modular structure, users can quickly swap cables and electrodes in the field-no tools required. Each RS485 digital water quality sensor carries its own calibration data, making maintenance simple and performance reliable. The L111M07 portable multi parameter water quality meter is a practical tool for on-site professionals who demand precision and efficiency.

• Simultaneously measure and display temperature, optical dissolved oxygen(DO), turbidity, conductivity/salinity, pH/ORP; supports chlorophyll, blue-green algae, and oil-in-water as optional parameters.
• Modular structure design with meter, cable, and electrode, each independently replaceable in the field.
• Large backlit LCD and clear keypad for quick readings and easy operation.
Stores up to 4096 sets of data with flexible manual and scheduled automatic storage, support USB data output.
• Equipped with a rechargeable lithium battery power supply.
• Supports up to four digital RS485 sensors mounted in one multi-parameter sensor head; plug-and-play auto-recognition and individual sensor calibration with data stored in the sensor
• The multi-parameter digital sensor features rapid full set response time within 30 seconds, smart alerts for voltage, communication and cleaning issues.
• All single-parameter sensors are built for durability and stable performance in challenging conditions.

Host Specifications
Dimensions	220 × 96 × 44 mm
Weight	460 g
Power Supply	2 × 18650 rechargeable batteries
Display	54.38 × 54.38 mm LCD, with backlight
Data Storage	Supported
Air Pressure Compensation	50 to 115 kPa, auto
Protection Rating	IP67
Electrode Host Specifications
Main Unit	Supports 4 sensors simultaneously
IP Rating	IP68
Dimensions	Φ64 mm × 532 mm
Interface	RS-485, MODBUS protocol
Power	2 × size 1 battery
Cable Length	5 m default, customizable
Sensor Type	Specifications
Dissolved Oxygen	Principle: Fluorescence
	Range: 0–20 mg/L or 0–200%
	Accuracy: ±1% or ±0.3 mg/L
	Max Depth: 40 m
Turbidity	Principle: 90° Scattering
	Range: 0.1–1000 NTU
	Accuracy: ±5% or 0.3 NTU
	Max Depth: 40 m
Conductivity (Salinity)	Range: 0–5 mS/cm or 0–100 mS/cm
	Salinity: 0–2.5 ppt or 0–80 ppt; TDS: 0–64000 mg/L
	Max Depth: 40 m
Oil-in-Water	Principle: UV Fluorescence
	Range: 0–150 ppm
	Linearity: R² > 0.999
	Max Depth: 40 m
pH Sensor	Principle: Glass Electrode
	Range: 0–14 pH
	Accuracy: ±0.02 pH
	Max Depth: 20 m
ORP Sensor	Principle: Platinum Electrode
	Range: –1999 to +1999 mV
	Accuracy: ±20 mV
	Max Depth: 20 m
Chlorophyll	Principle: Fluorescence
	Range: 0–500 µg/L
	Accuracy: ±5% or 0.5 µg/L
	Max Depth: 40 m
Cyanobacteria	Principle: Fluorescence
	Range: 0–30 million cells/mL (optional 200 million)
	Linearity: R² > 0.999
	Max Depth: 40 m

Specifications are subject to change without prior notice.

Portable Multiparameter Water Meter with Digital Sensors for pH, optical DO, turbidity, conductivity/salinity, Temp.

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