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Description
Ohaus AQUASEARCHER™ AP50MM Portable ColorimetersOhaus AQUASEARCHER AP50MM Portable Colorimeters Ohaus AQUASEARCHER AP50MM Portable Colorimeters is the perfect field companion for reliable and efficient colorimetric and turbidity measurements. Its rugged single handed design and pre programmed testing parameters make it easy to use on the go. Features: Fast and reliable tests AP50MM is equipped with a real time dynamic display for each measurement, to provide fast, reliable results. It can record up
Ohaus AQUASEARCHER™ AP50MM Portable Colorimeters
Ohaus AQUASEARCHER™ AP50MM Portable Colorimeters is the perfect field companion for reliable and efficient colorimetric and turbidity measurements. Its rugged single-handed design and pre-programmed testing parameters make it easy to use on the go.
Features:
- Fast and reliable tests - AP50MM is equipped with a real-time dynamic display for each measurement, to provide fast, reliable results. It can record up to 30,000 datapoints with time and date stamp.
- Intuitive operation- built-in calibration curves provide automatic selection of appropriate wavelengths from the long-lasting LED light source. Store commonly used tests for efficient field use.
- User-Friendly – large, backlit display makes it easier to read real-time results.
Packages - Available in two configurations:
| AP50MM-B | AP50MM-F |
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Specifications:
| Fixed wavelength | 365 nm; 420 nm; 455 nm; 525 nm; 560 nm; 570 nm; 630 nm |
| Photometric Measuring Range | 0 Abs ~ 1 Abs |
| Photometric Accuracy | ± 0.005 Abs @1.0 Abs Nominal |
| Turbidity Optical System | Nephelometric |
| Data Storage | 30,000 Group with Date, Time |
| Battery Life | 6 months (typical) @25 readings a week |
| Dimensions (LxWxH) | 10.43 in x 2.72 in x 3.47 in (265 mm x 69 mm x 88 mm) |
| Display | Backlit Graphical LCD, 160×240 pixels |
| Net Weight | 1.32 lb (0.6 kg) |
| Power | 4 AA (LR6) Batteries (Included) |
| Sample Vials Compatibility | Round Ø24mm |
| Source Lamp | Light Emitting Diode (LED) |
| Storage temperature range | 18 °C - 60 °C ~ 0 °F - 140 °F |
| Turbidity Detection Limit NTU | 1 |
| Turbidity Excitation Wavelength | IR LED; White |
| Turbidity Measuring Range NTU | 0 - 200 |
| Turbidity Reproducibility | 1 NTU |
| Wavelength accuracy | ±1.0nm |
| Wavelength Selection | Automatic |
| Working Altitude | Up to 2000m |
| Working Environment | 4 ~ 41 °C , 85%RH, non-condensing (40 ~ 106 ºF, 85%RH, non-condensing) |
Additional Literature:
AP50MM Quick Start Guide
AP50MM Manual
AP50MM Datasheet
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
4.3 ★★★★★
Based on 28 reviews
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Product Reviews
★★★★★ 4
I recommend using the KONG Extreme Dog Toy
Style: Sport, Size: Large
Helpful for throwing as much as my dog wants to fetch. I actually had to get a cortisone injection in my shoulder a few months after getting my dog - never had a dog with this much energy before! The Chuckit really helps.
Downside: The ball that comes with it is larger than a tennis ball, so may be too much for smaller doge. I can't imagine my sister-in-law's french bulldog carrying it! Also, in our house it gets destroyed within minutes, as my dog is a strong chewer. For this situation, I recommend using the KONG Extreme Dog Toy, Black, size Large.
This is shaped sort of like a snowman, which means it bounces unpredictably at times. My dog eventually chews the "head" off of this toy, but the remaining 2/3 still fits in the Chuckit (and is actually easier to throw with the "head" missing!). One caveat: the KONG is significantly heavier than the ball included with the Chuckit, so be aware of that...
Also, we ordered our first Chickit in October 2015, then needed to replace it in May of 2017, as it broke. I think the plastic became brittle over that time, as we left it out in the sun & rain in Florida. Since it is cheap to replace, that's not a big deal. (We ordered three Kong toys over that same period of time!)
To summarize, it's a very helpful tool to get the ball further, faster, with less strain, than without it. Knowing there are alternatives to the included ball for heavy chewers makes it worthwhile.
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Reviewed in the United States on July 19, 2017
★★★★★ 5
Great Ball Launcher!
Style: Sport, Size: Large
Our dogs love this ball launcher! I can throw the ball long distances without any arm strain. The balls wear out, and as described by others, tennis balls don’t fit. Buy extra balls if this is of concern. We bought a few of the “Chuck It” rubber 3” balls and they have worked well for our dogs. It’s a great value and fun for the dogs.
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Reviewed in the United States on March 28, 2025
★★★★★ 5
Chuckit!! Just Chuck it!!
Style: Sport, Size: Large
Chuck it further than your skinny little arms can chuck it. Doggo loved this, I loved this and when we were done Doggo promptly hid it under the porch so I couldn’t take it from him. It’s not a squeaky toy, it’s for fetch. You wing it out toward the yard and it flies, bounces if it’s lucky then is attacked in an adoring manner. We like it!!
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Reviewed in the United States on May 31, 2026
★★★★★ 5
Great to exercise the dogs!
Style: Sport, Size: Large
Great to throw 3” KONG Ball (RED) with hole thru it! The thrower is the best to exercise dogs with retrieving balls!
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Reviewed in the United States on May 6, 2026
★★★★★ 5
My GSD's Emotional Support Balls
My GSD has three of these and they are undoubtedly his emotional support balls. I bought these so that the medium ones wouldn't get stuck under our couch and make him spiral. He takes one everywhere, it keeps him company in his bowl when he's eating, it gets dropped in my shower, it goes potty with him, on walks, it falls out of his mouth when he falls asleep. These are the equivalent of a GSD pacifier. Best Purchase I've made hands down. Plus they don't get stinky after being constantly covered in dog drool and if they get dirty/ muddy/ hairy a decent rinse will do the trick . They last a LONG time with my super chewer, they are firm enough so that when he gets a good chew on it it doesn't fall apart. He has endless hours of obsession logged into these balls.
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Reviewed in the United States on June 18, 2025