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MD150 Multiparameter Photometer

Accurate, reliable multiparameter water testing for field and laboratory use.


The Lovibond® MD150 Multiparameter Photometer provides a compact and versatile solution for routine water quality analysis across a wide range of industrial, commercial and environmental applications.


Combining high-precision optical measurement with pre-programmed testing methods, the MD150 allows users to measure multiple water quality parameters using a single instrument. Depending on the model selected, testing options include chlorine, bromine, ozone, chlorine dioxide, pH, cyanuric acid, alkalinity and calcium hardness.


With straightforward operation, integrated data storage and a rugged IP67-rated design, the MD150 provides a practical solution for water treatment professionals, laboratory technicians and field engineers requiring dependable results across different testing environments.

Accurate and Versatile Multiparameter Testing

Reliable water quality monitoring requires accurate measurements across a range of parameters to support effective treatment control and informed operational decisions.


The Lovibond® MD150 combines multiple photometric testing methods within one compact instrument, providing a convenient alternative to using separate meters for different water quality parameters.


Its high-precision optical system delivers accurate and reproducible measurements, while pre-programmed methods and customisable favourites provide quick access to frequently used tests, helping streamline routine analysis.

Designed for Straightforward Operation

The MD150 is designed to make routine water testing simple and efficient, allowing users to carry out multiple measurements with confidence in both field and laboratory environments.


Its intuitive interface and pre-programmed methods support straightforward operation, while the One-Time-Zero (OTZ) function allows the instrument to remain zeroed for up to eight hours, reducing repeated preparation steps during regular testing.


A compact, ergonomic design supports comfortable one-handed operation, making the MD150 a practical choice for engineers and technicians carrying out testing across different locations.

Flexible Data Storage and Connectivity

The Lovibond® MD150 combines reliable measurement with practical data management features, allowing test results to be recorded, transferred and incorporated into routine reporting processes.


With automatic storage for the last 100 measurements, including date and time information, the instrument helps users maintain organised testing records as part of regular water quality monitoring.


NFC connectivity enables wireless data transfer to the AquaLX® App, while USB-C connectivity and Lovibond® Data Expert software provide additional options for exporting results, managing measurement data and supporting documentation requirements.

Robust and Portable Design

The MD150 combines a compact handheld format with durable construction, making it suitable for regular testing across industrial, laboratory and field-based environments.


Its IP67-rated housing provides protection against dust and water ingress, while protective rubber side panels improve grip and help protect the instrument during everyday use.


Designed for portability and straightforward handling, the MD150 allows water quality measurements to be carried out conveniently in laboratories, plant rooms and directly at the sampling location.

Suitable for a Wide Range of Applications

The Lovibond® MD150 is available in different model configurations, allowing users to select the combination of testing methods most appropriate for their application.


Depending on the model selected, the instrument can support water analysis across swimming pools and spas, drinking water treatment, cooling and boiler water systems, wastewater treatment and industrial process monitoring.


By combining multiple testing methods within one portable instrument, the MD150 provides a flexible solution for users who need to monitor several water quality parameters as part of a regular testing programme.

Supporting Effective Water Quality Monitoring

Regular water testing provides essential information for monitoring treatment performance, identifying changing water conditions and maintaining effective control of water systems.


By combining precise optical measurement, versatile testing capability and practical data management, the Lovibond® MD150 provides a dependable solution for routine multiparameter water analysis.


With its compact design, rugged construction and straightforward testing procedures, the MD150 supports consistent water quality monitoring across a wide range of field and laboratory applications.

   Order Code   Parameter Test Parameter Measuring Range
 282100MD150 Chlorine, pH, tablet reagentspH value L
pH-value T
Chlorine HR 2 PP

Chlorine HR T 
Chlorine L 
Chlorine PP
Chlorine T
6.5 - 8.4
6.5 - 8.4
0.1 - 10 mg/L Cl
2
0.1 - 10 mg/L Cl2
0.02 - 4 mg/L Cl2
0.02 - 2 mg/L Cl2
0.02 - 6 mg/L Cl2
282102 MD150 Chlorine, pH, liquid reagentspH-value L
pH-value T
Chlorine HR 2 PP

Chlorine HR T 
Chlorine L 
Chlorine PP
Chlorine T
6.5 - 8.4
6.5 - 8.4
0.1 - 10 mg/L Cl
2
0.1 - 10 mg/L Cl2
0.02 - 4 mg/L Cl2
0.02 - 2 mg/L Cl2
0.02 - 6 mg/L Cl2
 282105MD150 Chlorine, pH, powder reagentspH-value L
pH-value T
Chlorine HR 2 PP

Chlorine HR T 
Chlorine L 
Chlorine PP
Chlorine T
6.5 - 8.4
6.5 - 8.4
0.1 - 10 mg/L Cl
2
0.1 - 10 mg/L Cl2
0.02 - 4 mg/L Cl2
0.02 - 2 mg/L Cl2
0.02 - 6 mg/L Cl2
 282110MD150 Chlorine, pH, Cyanuric acid, tablet reagentsCyA HR T
pH-value L
pH-value T
Chlorine HR 2 PP
Chlorine HR T 
Chlorine L 
Chlorine PP
Chlorine T
10 - 200 mg/L CyA
6.5 - 8.4
6.5 - 8.4
0.1 - 10 mg/L Cl2
0.1 - 10 mg/L Cl2
0.02 - 4 mg/L Cl2
0.02 - 2 mg/L Cl2
0.02 - 6 mg/L Cl2
 282112MD150 Chlorine, pH, Cyanuric acid, liquid reagentsCyA HR T
pH-value L
pH-value T
Chlorine HR 2 PP
Chlorine HR T 
Chlorine L 
Chlorine PP
Chlorine T
10 - 200 mg/L CyA
6.5 - 8.4
6.5 - 8.4
0.1 - 10 mg/L Cl2
0.1 - 10 mg/L Cl2
0.02 - 4 mg/L Cl2
0.02 - 2 mg/L Cl2
0.02 - 6 mg/L Cl2
 282120MD150 Chlorine, Chlorine HR (potassium iodide), Chlorine dioxideChlorine Dioxide PP
Chlorine Dioxide T
Chlorine HR 2 PP
Chlorine HR (KI) T
Chlorine HR T 
Chlorine L 
Chlorine PP
Chlorine T
0.04 - 3.8 mg/L ClO2
0.04 - 11 mg/L ClO2
0.1 - 10 mg/L Cl2
5 - 200 mg/L Cl2
0.1 - 10 mg/L Cl2
0.02 - 4 mg/L Cl2
0.02 - 2 mg/L Cl2
0.02 - 6 mg/L Cl2
 282130 MD150 Chlorine, Chlorine dioxide, pH, KS4.3

Alkalinity-m T

Chlorine Dioxide PP
Chlorine Dioxide T
Chlorine HR 2 PP
Chlorine HR T
Chlorine L
Chlorine PP
Chlorine T
K2S4.3 T
pH-value L
pH-value T 
5 - 300 mg/L CaCO3
0.04 - 3.8 mg/L ClO2
0.04 - 11 mg/L ClO2
0.1 - 10 mg/L Cl2
0.1 - 10 mg/L Cl2
0.02 - 4 mg/L Cl2
0.02 - 2 mg/L Cl2
0.02 - 6 mg/L Cl2
0.1 - 4 mmol/L K2S4.3
6.5 - 8.4
6.5 - 8.4
 282140 MD150 Chlorine, Bromine, pH, Chlorine dioxide, OzoneBromine T
Chlorine Dioxide PP
Chlorine Dioxide T
Chlorine HR 2 PP
Chlorine HR T 
Chlorine L 
Chlorine PP
Chlorine T
Ozone PP
Ozone T
pH-value L
pH-value T
0.05 - 13.5 mg/L Br2
0.04 - 3.8 mg/L ClO2
0.04 - 11 mg/L ClO2
0.1 - 10 mg/L Cl2
0.1 - 10 mg/L Cl2
0.02 - 4 mg/L Cl2
0.02 - 2 mg/L Cl2
0.02 - 6 mg/L Cl2
0.015 - 1.2 mg/L O3
0.02 - 2 mg/L O3
6.5 - 8.4
6.5 - 8.4
 282150MD150 Chlorine, Bromine, pH, Cyanuric Acid,
Alkalinity-m, Calcium Hardness
Alkalinity-m T
Bromine T
Chlorine HR 2 PP
Chlorine HR T 
Chlorine L 
Chlorine PP
Chlorine T
CyA HR T
Hardness Calcium (B) T
K2S4.3 T
pH-value L
pH-value T
5 - 300 mg/L CaCO3
0.05 - 13.5 mg/L Br2
0.1 - 10 mg/L Cl2
0.1 - 10 mg/L Cl2
0.02 - 4 mg/L Cl2
0.02 - 2 mg/L Cl2
0.02 - 6 mg/L Cl2
10 - 200 mg/L CyA
5 - 500 mg/L CaCO3
0.1 - 4 mmol/L K2S4.3
6.5 - 8.4
6.5 - 8.4
   SpecifcationDetails
Instrument type
Multiparameter photometer
Optical systemLED-based photometric system
Light sourceLED
WavelengthModel-dependent, 415–680 nm
Photometric range0–3 Abs
Photometric accuracy±3% full scale (20–25 °C)
DisplayBacklit LCD
 Operation Foil keypad
 Sample vials 13 mm, 16 mm and 24 mm round cuvettes, depending on method
 Calibration Factory and user adjustment
 Protection rating IP67
 Power supply 2 × AA batteries
 Battery life Approx. 5,000 measurements without backlight
 Operating conditions 5–50 °C, 30–95% RH (non-condensing)
 Dimensions 155 × 76 × 45 mm
 Weight 247 g
 Compliance CE

Data Management & Connectivity

   FeatureDetails
Internal memory
100 measurement records
Wireless connectivityNFC
Mobile appAquaLX®
PC connectivityUSB-C
PC software Lovibond® Data Expert
Data exportCSV
User-defined methodsSupported via Data Expert
Software updatesFirmware and method updates
One-Time-ZeroUp to 8 hours

MD150 Brochure

Product Codes