SKU: 93526143400

Milwaukee C65 Low Range Waterproof Conductivity Pen with ATC and Replaceable Electrode

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Description

Milwaukee C65 Low Range Waterproof Conductivity Pen with ATC and Replaceable ElectrodeMilwaukee C65 Low Range Waterproof Conductivity Pen with ATC and Replaceable Electrode The Milwaukee C65 Conductivity Pen is designed for aquariums, aquaculture, agriculture and pools. It helps to make sure that fish or plants are receiving the right amount of nutrients to keep the water clean and clear. Features: Measures conductivity and temperature with automatic temperature compensation Ideal range for Aquaculture (0 to 1999 uS cm) Units directly

Milwaukee C65 Low Range Waterproof Conductivity Pen with ATC and Replaceable Electrode

The Milwaukee C65 Conductivity Pen is designed for aquariums, aquaculture, agriculture and pools.  It helps to make sure that fish or plants are receiving the right amount of nutrients to keep the water clean and clear.

Features:

  • Measures conductivity and temperature with automatic temperature compensation
  • Ideal range for Aquaculture (0 to 1999 uS/cm)
  • Units directly in uS/cm (no conversions required)
  • Factory calibrated with the ability to recalibrate if needed
  • Replaceable electrode
  • Fully waterproof to IP65
  • 250 hours continuous use (3 x 1.5V batteries included)

Specifications:

  • Range: 0 to 1999 uS/cm
  • Resolution: 1 uS/cm
  • Accuracy: ±2% Full Scale
  • Typical EMC Deviation: ±2% Full Scale
  • Temperature Compensation: Automatic from 5 to 50°C (41 to 122°F), with ß=2%/°C
  • Calibration: Manual, at 1 point through trimmer
  • Probe: MA73075 (replaceable)
  • Environment: 0 to 50°C / 32 to 122°F; max RH 100%
  • Battery Type: 3 x 1.5V (included)
  • Battery Life: Approx. 250 hours of continuous use
  • Dimensions: 6.5 x 1.2 x 1.2 inches (165 x 30 x 30 mm)
  • Weight: 3.5 ounces (0.99 g)

Milwaukee C65 Manual

CARE AND USE

MAINTENANCE

EC electrodes can develop nutrient build up over time. To minimize build up, always rinse the probe in fresh tap or DI water after every use.

CONVERTING EC TO TDS

The Milwaukee EC Pen, like all conductivity meters, provides a measure of electrically charged ions in a solution and is an absolute measure of conductivity.

EC is often converted to TDS in parts per million (ppm). Different scales include the 500 scale, 650 scale and the 700 scale. However, true PPM can only be determined through chemical analysis.

Your uS/cm reading can be approximately converted to TDS (ppm) as shown in the examples below.

1 uS/cm = 0.5 ppm on a .5 factor scale 
1 uS/cm = 0.7 ppm on a .70 factor scale (442)

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. 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
SKU: 93526143400

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4.7 ★★★★★
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Elizabeth Raiola
Omaha, US
★★★★★ 5
Puppy proof!
Size: Large Size 3, Color: White-Blue
Purchased the blue ball. Puppy loves to carry and shake the ball with the strapes in her mouth. Lots of bite marks but hasnt popped it. We bought 2. She plays in her fenced in yard with them. Fun to throw and kick around.
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Reviewed in the United States on January 6, 2026
E
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Erin Bryant
Belleville, US
★★★★★ 5
Great Toy For Playful Pup
Size: Medium Size 2, Color: White-Blue
We have purchased three of these! Our dog is obsessed with them and they keep her very entertained. The strap is a great tool for her to easily pick up the ball.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 26, 2026
S
Verified Purchase
Stephanie Carter
Dallas, US
★★★★★ 5
perfect for medium size dogs !
Size: Medium Size 2, Color: Green-Blue
i have a soccer ball loving french bulldog.. and he LOVES this toy! easy for the squishy faced breeds to pick up and run with! very durable!
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Reviewed in the United States on May 2, 2026
D
Verified Purchase
Denise
Lake Worth, US
★★★★★ 1
easily punctured by dog teeth & not durable
Size: Large Size 3, Color: World Cup
I have a medium size dog 25lbs. The tabs all came off within 4 days & deflated/punctured in the same amount of time this ball is not as sturdy as they say.
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Reviewed in the United States on May 26, 2026
S
Verified Purchase
Sunshyne
Lowell, US
★★★★★ 4
Quality product but sold on Amazon cheaper with different seller.
Size: Medium Size 2, Color: White-Blue
The size is the reason for the missing star. Made of good quality but found cheaper from another buyer. My 9month Cane Corso hasn't destroyed it yet and enjoys playing keep away with the other dogs.
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Reviewed in the United States on November 2, 2025

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