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Description
Milwaukee MW306 MAX Waterproof EC/TDS/NaCl/Temp Logging Portable MeterMilwaukee MW306 MAX Waterproof EC TDS NaCl Temp Logging Portable Meter The Milwaukee MW306 4 in 1 PRO EC TDS NaCl Temp. Logging Portable Meter is fast, reliable, tough and simple to operate. It is ideal for use by hydroponics, horticulture, labs, food processing, water treatment and many other applications with challenging EC TDS NaCL Temp. measurement needs. With easy one point calibration and six standard buffer calibrations choices, the meter can
Milwaukee MW306 MAX Waterproof EC/TDS/NaCl/Temp Logging Portable Meter
The Milwaukee MW306 4-in-1 PRO EC/TDS/NaCl/Temp. Logging Portable Meter is fast, reliable, tough and simple to operate. It is ideal for use by hydroponics, horticulture, labs, food processing, water treatment and many other applications with challenging EC/TDS/NaCL/Temp. measurement needs.
With easy one-point calibration and six standard buffer calibrations choices, the meter can be quickly calibrated to a high accuracy compared to other meters. The MW306 meter is accurate to ± 1% of reading for EC/TDS and NaCL. It comes with a MA815D/1 conductivity probe with a built-in temperature sensor allowing the meter to automatically adjust the EC/TD/NaCl reading for the effect of temperature (ATC). It is also IP67 Waterproof rated.
Features:
- Fast, easy-to-read results with large duel level digital LCD readout
- Extreme accuracy to 1% of reading for EC/TDS/NaCl |+/- 0.5°C (+/-0.9°F)
- Extended ranges for EC/TDS/NaCl
- Lightweight and portable, IP67 rated
- Simple, easy-to-use logging and USB download functions, manual or on demand up to 1,000 logs
- GLP data, date and time
- Different logging methods, manual log-on-demand or manual log-on-stability
- Easy measurement: just place the probe in the sample, gently stir and wait for the reading to stabilize
- Single cell factor calibration for EC/TDS automatic simple 1-point calibration
- Rugged, low maintenance, high performance, easy-to-clean EC/TDS/NaCL/Temp probe
- Built-in temperature sensor
- 3 x 1.5V alkaline AA batteries with 200 hours battery life (included)
- Built-in Battery Error Prevention System (BEPS)
- Auto-Ranging Feature for EC/TDS
- Auto shut-off feature to preserve battery energy
- Internal clock date to keep track of different time-dependent functions (calibration, timestamp, calibration time out)
- 3-foot probe cables for extra flexibility when testing
Specifications:
- EC Range: 0.00 to 29.99 uS/cm / 3.0 to 29.9 uS/cm
- EC Range: 30.0 to 299.9 uS/cm / 300 to 2999 uS/cm
- EC Range: 3.00 to 29.99 mS/cm / 30.0 to 200.0 mS/cm / up to 500.0 mS/cm, absolute conductivity*
- TDS Range: 0.00 to 14.99 ppm (mg/L)
- TDS Range: 15.0 to 149.9 ppm (mg/L) / 150 to 1499 ppm (mg/L)
- TDS Range: 1.50 to 14.99 g/L / 15.0 to 100.0 g/l / up to 400.0 g/L absolute TDS* (with 0.80 factor)
- Salinity Range: 0.0 to 400.0 %NaCl / 2.00 to 42.00 PSU
- Salinity Range: 0.00 to 80.00 g/L
- Range: -20.0 to 120.00°C (-4.0 to 248.0°F)
- EC Resolution: 0.01 uS/cm / 0.1 uS/cm / 1 uS/cm
- EC Resolution: 0.01 mS/cm / 0.1 mS/cm
- TDS Resolution: 0.01 ppm / 0.1 ppm / 1 ppm
- TDS Resolution: 0.01 g/L / 0.1 g/L
- Salinity Resolution: 0.1 % NaCl / 0.01 PSU / 0.01 g/L
- Temperature Resolution: 0.1°C / 0.1°F
- Accuracy @ 25°C / 77°F
- EC: ± 1% of reading / ±0.05 uS/cm or 1 digit, whichever is greater
- TDS: ±1 % of reading / ±0.03 ppm or 1 digit, whichever is greater
- Salinity: ±1 % of reading
- Temperature: ±0.5°C (±0.9°F)
- EC/TDS Calibration: single cell factor calibration, 6 standards: 84 uS/cm, 1413 uS/cm, 5.00 mS/cm, 12.88 mS/cm, 80.0 mS/cm, 111.8 mS/cm / one-point offset: 0.00 uS/cm
- Salinity Calibration: one point with MA9066 salinity calibration solution
- Temperature Calibration: no temperature calibration
- Temperature Compensation: Automatic, -5.0 to 100.0°C (-23.0 to 212.0°F) or manual from -20 to 120°C (-4.0 to 248.0°F) or NO TC without temperature compensation
- Conductivity temperature coefficient: 0.00 to 6.00 % / °C (EC and TDS only) | Default value: 1.90 % / °C
- TDS factor: 0.40 to 0.80 / Default value: 0.50
- EC Probe: MA815D/1, (4 ring)
- Temperature probe: Built-in temperature sensor
- Logging: Maximum 1,000 samples (max. 100 lots) / on demand, 200 samples; on stability, 200 samples / interval logging, 1000
- PC Connectivity: 1 micro USB port
- Battery type: 3 X 1.5V alkaline AA (included)
- Battery life: Approx. 200 hours of use
- Auto-off: Selectable 5, 10, 30, 60 min. or off
- Environment: 0 to 50°C / 32 to 122°F; max RH 95%
- Dimensions: 200 x 85 x 50 mm (7.9 x 3.3 x 2.0 inches)
- Casing: IP67
- Weight: .26 kg / 0.58 lbs (with battery)
- Warranty: 2 years, Meter
* Absolute conductivity (or TDS) is the conductivity value without temperature compensation
CARE AND USE
EC meters usually start performing poorly because of problems with the sediment on the conductivity probe's rings. The dirty rings on the probe can change impedance. Cleaning the rings is simple, slide the plastic shield off and clean with DI water and soft cloth to keep your readings accurate.
The life of your meter can be extended in the following ways:
- Storage - When not in use, store the meter and probe in a safe area to avoid damage. The EC probe is stored dry. Remove batteries if not in use for a prolonged period to prevent battery compartment corrosion.
- Calibration - The MW306 is one-point calibration for ease-of-use. Calibrating regularly is best to keep your meter accurate for all your readings.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.8 ★★★★★
Based on 21 reviews
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Product Reviews
★★★★★ 5
Believe the Reviews
Color: Cooling Blue Cover, Size: King (Pack of 2)
I purchased these pillows because we were in need of new pillows, I previously had allswell pillows which were from walmart and they were good to start but now they tragically became very sparse and it started to effect my sleep so I saw these after careful review on other pillows and reviews I came across these and I saw some reviews and videos and I ordered them.. first they are king size we ordered they are perfect for the bed, they are plump and soft, they are memory foam which has always worked out for me for support and kept it’s shape these are great it did have a little smell I guess from packaging but other than that they are a huge upgrade from what we had before! I’m excited because they are cooling too! for the price point can’t beat it and this is coming from someone who was about to spend money on a purple pillow this will be good for now definitely buy it.
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Reviewed in the United States on March 28, 2026
★★★★★ 3
Inconsistent
Color: Cooling Blue Cover, Size: Queen (Pack of 2)
Ive ordered two different batches of these pillows, the first was a 2 pack, the second batch was a 4 pack. The pillows that came in the 2 pack have a different quality to them. The memory foam feels thicker, takes long to depress and to spring back to form. It offers more resistance, a heavier odor (at the start), and was the pillow that I fell in love with. Things changed when I ordered the 4 pack a couple months later. There was an inconsistency between the foam in these two different batches. both sets of pillows are comfortable. The first batch being firmer means I had to remove more foam before it became comfortable but the 2nd batch being more springy, I was able to keep all the foam inside. I docked a couple stars because I’m not able to provide a consistent experience with these pillows across all three beds in my home.
If you need a pillow, order a set and be happy. If you want a bunch of memory foam pillows throughout your house, maybe look elsewhere as these may not all be identical.
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Reviewed in the United States on January 17, 2026
★★★★★ 5
Very cool and comfortable pillows. Great value.
Color: Cooling Blue Cover, Size: Queen (Pack of 2)
These pillows are everything described on the site. They do retain shape and don’t flatten out after sleeping all night. They are nice and clean looking and comfortable. The fit on my king size bed is perfect cause I prefer the size to king size. Haven’t had to wash them yet but I have had other pillows with the same material inside and the wash ability is great.
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Reviewed in the United States on May 17, 2026
★★★★★ 5
Great pillow
Color: Cooling Blue Cover, Size: Queen (Pack of 2)
The pillows feel great. Being able to remove portions of the interior allowed me and my wife to have a perfect fit. They do stay cool which seems to have helped with my restlessness.
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Reviewed in the United States on May 12, 2026
★★★★★ 5
It works! Quality pillow.
Size: Standard (1 Count), Color: Original White (Cooling)
This does actually provide a cooling effect, and it's very comfortable! The accompanying literature is helpful too. I believe this to be a quality pillow for the price.
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Reviewed in the United States on June 2, 2026
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