Milwaukee MW103 PRO+ 2-in-1 pH/pH-mV/temperature meter with ATC
The Milwaukee MW103 PRO+ 2-in-1 pH/pH-mV/temperature meter with ATC is the professional choice for anyone who takes accurate pH measurements in their marine aquarium or laboratory environment seriously. This gea...
The Milwaukee MW103 PRO+ 2-in-1 pH/pH-mV/temperature meter with ATC is the professional choice for anyone who takes accurate pH measurements in their marine aquarium or laboratory environment seriously. This advanced meter combines robustness, ease of use, and laboratory precision in one compact device. Whether you work with saltwater aquariums, hydroponics, breweries, or wine production, the MW103 PRO+ delivers reliable and fast results, even in the most demanding conditions.
Perfect measurements for every marine aquarium
Stable water parameters are crucial for the well-being of coral and fish. With the Milwaukee MW103 PRO+, you measure not only pH, but also mV (for checking electrode condition) and temperature. Thanks to automatic temperature compensation (ATC), you are always assured of a correct pH value, regardless of temperature fluctuations in the aquarium water.
- pH range: from -2.00 to 16.00 pH, suitable for all types of aquarium water
- pHmV range: ±200.0 mV, ideal for monitoring electrode performance
- Temperature range: -5 to 105°C, suitable for both tropical and coldwater aquariums
Why choose the Milwaukee MW103 PRO+?
- Extremely accurate: measures to within ±0.02 pH and ±0.5 mV
- Automatic two-point calibration: for consistent, reliable results
- Lab-grade SE220 electrode: gel-filled and double junction, specially designed for demanding applications
- Robust temperature probe: for direct automatic temperature compensation
- Large, clear display: easy to read, even in dimly lit rooms
- Long battery life: up to 300 hours of continuous use
Application and ease of use
The MW103 PRO+ is designed for both the demanding hobbyist and the professional user. At the touch of a button, you get instant insight into the current pH, mV, and temperature of your aquarium water. The automatic shut-off function prevents unnecessary battery drain, while the sturdy housing can withstand intensive use.
- Ideal for marine aquariums, coral tanks, hydroponics, and laboratories
- Fast, stable measurements without complicated settings
- Suitable for both beginners and experienced aquarists
Maintenance and lifespan
A pH meter is only as good as its electrode. The included SE220 electrode is low-maintenance and designed for a long service life. Regular cleaning and proper storage in the correct storage solution significantly extend its lifespan. Furthermore, Milwaukee offers an extensive range of maintenance products for optimal performance.
- Always use the recommended storage and cleaning fluids.
- Never let the electrode dry out for maximum accuracy
- Replace the electrode in time if performance decreases.
Technical specifications
- pH range: -2.00 to 16.00 pH
- pHmV range: ±200.0 mV
- Temperature range: -5 to 105°C
- Resolution: 0.01 pH, 0.1 mV, 0.1°C
- Accuracy: ±0.02 pH, ±0.5 mV, ±0.5°C
- Automatic temperature compensation: 0 to 70°C
- Automatic calibration: 1 or 2 points
- Power supply: 1x 9V battery (included)
- Includes SE220 pH electrode and MA831R temperature probe
Why order from our webshop?
- Always expert advice from aquarium experts
- Fast delivery from our own stock
- Secure payment and excellent service
Choose certainty and precision for your marine aquarium. The Milwaukee MW103 PRO+ is the reliable partner for every aquarist who makes no compromises on water quality. Order today and experience the difference in accuracy and ease of use!

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Milwaukee
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Above € 50,- free delivery in NL & BEIn stock Ordered before 16:00, shipped today *
The Milwaukee MW103 PRO+ 2-in-1 pH/pH-mV/temperature meter with ATC is the professional choice for anyone who takes accurate pH measurements in their marine aquarium or laboratory environment seriously. This gea...
Milwaukee
Ocean Store
Ocean Store is a modern webshop with a large selection of reef aquarium equipment, supplements and food for your (marine) aquarium. We excel in reachability, service and speed. Not only in delivery of your ordered goods, but also in the adequate answering of your (marine) aquarium related questions. We are happy to share our passion for reef aquariums with you!
Open: Available Monday / Friday 9:00-20:00
Phone: +31(0)78-6456669
€ 0.99 - € 2999.99
EUR
479190