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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4.2 ★★★★★
Based on 7 reviews
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Kathryn J Hahn
Massapequa, US
★★★★★ 5
German Shepherd toys
Color: Blue
Great for German shepherds
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 6, 2026
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Verified Purchase
Kindle Customer
New York, US
★★★★★ 5
For aggressive chewers
Color: Blue
My pup is an aggressive chewer and these keep him occupied. He keeps coming back for them. Go to replaced old chew toys. Only issue is he leaves his toys everywhere and if you step on them. They are quite sharp
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Reviewed in the United States on May 26, 2026
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Verified Purchase
POPSCHERRI
Waukegan, US
★★★★★ 3
Not the best for REAL CHEWERS.
Color: Blue
My dogs love to chew and these didn’t last too long. It did keep them busy and I probably will buy these again but don’t expect much resistance of yours have big dogs that love to chew toys.
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Reviewed in the United States on June 6, 2026
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Verified Purchase
jennifer Millage
Lake Worth, US
★★★★★ 5
Extremely hard and durable
Color: Blue
These are very hard , but my puppy lives them and my large dog can't tear them up, so that is a huge plus.
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Reviewed in the United States on April 8, 2026
J
Verified Purchase
Jazzlyn McClure
Belleville, US
★★★★★ 5
Large breed approved
Color: Blue
these incredible aggressive chew toys – they've seriously been a game-changer for my pups! I know it's a bit late, but better late than never, right? I've got a couple of power chewers at home, a Rottweiler and a Labrador, and anyone with big dogs knows the struggle of finding toys that actually last. These bad boys have been in constant rotation for over a year now, and I'm genuinely impressed by their resilience. They're incredibly tough! Funnily enough, we originally had three, but now we're down to just one. The others aren't broken, though – I'm pretty sure my dogs just loved them so much they've hidden them away in some secret stash, as they tend to do with their favorite treasures! Beyond just being durable, these toys have been a massive help with their training. They’re fantastic for redirecting all that enthusiastic chewing away from my furniture and shoes, which, let's be honest, is a huge win for any pet parent! Considering how long they've held up to some serious chomping, the price point is absolutely spot on. You definitely get great value for your money.watch your toe they are heavy. If you've got a dog that's a champion chewer, you absolutely need to try these out. They're a lifesaver!
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Reviewed in the United States on May 21, 2026

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