Products / Environmental and Industrial
MD50 Range — Single Parameter Photometers
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MD50 Range — Single Parameter Photometers
Individual data sheets available below in table.
- Dedicated single-parameter analysis
- Each MD50 instrument is pre-programmed and factory-calibrated for one specific analyte — from chlorine and pH to COD, turbidity and beyond — making it ideal for routine field testing and dedicated laboratory applications where a focused, reliable instrument is required.
- Robust, IP67-rated design built for the field
- The MD50 features a rugged industrial housing with rubber-protected sides and an IP67 waterproof rating, ensuring durability and reliability in demanding environments — from treatment plants and industrial sites to outdoor field sampling.
- Accurate, reproducible results — every time
- The innovative optical system of the MD50 delivers exceptional accuracy and speed, ensuring precise measurements in record time. Factory-programmed methods cover different reagent types (tablets, powder packs and liquid reagents), so the instrument is ready to use straight from the box.
- One-Time-Zero function
- Zero the instrument once for each new sample — all subsequent tests of that sample do not require re-zeroing. The OTZ function can be activated or deactivated for individual methods in the settings.
- Automatic data storage with time and date stamp
- The MD50 automatically stores the last 100 readings and protocols, each with a time and date stamp. Results are retained in memory even during a battery exchange.
- NFC and USB-C data transfer
- Transfer data wirelessly via NFC to the free AquaLX® app (iOS and Android), which displays results as illustrative graphics with min/max limits and exports data as Excel®-compatible CSV files. Data can also be transferred via USB-C cable to Lovibond® Data Expert software for PC-based analysis, firmware updates and user-defined method programming.
Ready to order or need more information?
Find spares, accessories and standards for the MD50 photometers on our Accessories and Standards page.
Available Models — Test Methods & Measuring Ranges
Click on (pdf.) for individual datasaheets.
Instrument | Part No. | Model / Part No. | Test Method | Measuring Range |
|---|---|---|---|---|
MD50 Chlorine (pdf.) | 280100 | Tablet reagents | Chlorine T
Chlorine HR T
Chlorine L
Chlorine PP | 0.01–6.0 mg/L Cl₂
0.1–10 mg/L Cl₂
0.02–4.0 mg/L Cl₂
0.02–2 mg/L Cl₂ |
MD50 Chlorine (pdf.) | 280105 | Powder pack reagents | Chlorine PP | 0.02–2 mg/L Cl₂ |
MD50 Chlorine Dioxide (pdf.) | 280120 | Tablet reagents | Chlorine dioxide T | 0.02–11 mg/L ClO₂ |
280135
280130 | Powder pack reagents
Tablet reagents | Ozone PP
Ozone T | 0.015–1.2 mg/L O₃
0.02–2 mg/L O₃ | |
MD50 Chlorine HR (pdf.) | 280140 | KI tablet reagents | Chlorine HR (KI) T | 5–200 mg/L Cl₂ |
MD50 Suspended Solids (pdf.) | 280170 | No reagent required | Suspended Solids | 10–750 mg/L TSS |
MD50 Molybdenum (pdf.) | 280191 | Tablet & powder reagents | Molybdate T
Molybdate HR PP
Molybdate LR PP | 1.5–30 mg/L Mo
1.6–40 mg/L Mo
0.05–3 mg/L Mo |
MD50 Phosphate (pdf.) | 280215 | Tablet & powder reagents | Phosphate LR T
Phosphate PP | 0.05–4 mg/L P
0.05–2.5 mg/L PO₄ |
MD50 COD Complete Setup with COD vials, RD125 Thermoreactor (pdf.) | 280240 | VARIO tube tests | COD LR
COD MR
COD HR | 3–150 mg/L COD
20–1,500 mg/L COD
200–15,000 mg/L COD |
MD50 Monochloramine (pdf.) | 280150 | Vario Monochlor F Reagent/Vario Free Ammonia Reagent Solution | Monochloramine | 0.02 - 4.5 mg/L |
MD50 Urea (pdf.) | 280160 | Reagents for urea | Urea (Indophenol / Urease) | 0–3 mg/L Urea |
MD50 Hazen / APHA Colour (pdf.) | 280180 | No reagent required | Colour (Hazen / APHA) | 0.5–500 Hazen |
MD50 Copper (pdf.) | 280200 | Tablets | Copper No.1/No.2 T | 0.05 - 5.0 mg/L Cu |
Each MD50 instrument is supplied with reagents matched to its specific parameter. Contact us with your parameter and application requirements and we will advise the correct model, reagents and accessories.
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Our team has over 35 years of Lovibond experience. Contact us for pricing, availability, and support.