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Description
Dissolved Oxygen Meter KitReliable DO readings at a reasonable price Measures dissolved oxygen to determine water quality in environmental testing, labs, industrial and municipal wastewater, aquariums and fish hatcheries. The back lit display simultaneously displays dissolved oxygen (in % or mg L) and temperature readings (in C or F). Automatic temperature compensation as well as manual compensation for salinity and altitude. Features simple one button calibration to air. DO
Reliable DO readings at a reasonable price
Measures dissolved oxygen to determine water quality in environmental testing, labs, industrial and municipal wastewater, aquariums and fish hatcheries. The back-lit display simultaneously displays dissolved oxygen (in % or mg/L) and temperature readings (in °C or °F). Automatic temperature compensation as well as manual compensation for salinity and altitude. Features simple one-button calibration to air. DO probe heads include built in membranes and screw on and off for easy replacement. Also functions as a pH, ORP, Conductivity, TDS or Salinity meter when used with the optional probes (sold separately).
Comes in a hard carrying case complete with one DO probe, two spare probe heads, electrolyte, instructions and a 9V battery.
EPA Equivalency Method: 360.1.
Meter Dimensions: 7" × 2¾" × 1¼" (177 × 68 × 45 mm)
Meter Weight: 16 oz (489 g)
Kit Dimensions: 11" × 9½" × 2" (279 × 241 × 51 mm
Specifications
Downloads
Comparison Chart
Compare Sper Scientific Dissolved Oxygen (DO) Meters
| Model Number | 850045 | 850048DOK | 850081DOK | 860055 | 860067 | 860073 |
|---|---|---|---|---|---|---|
| Product Name | Waterproof DO Meter Pen | Combination Water Meter Kit w/ DO Probe | Dissolved Oxygen Meter Kit | Rechargeable DO Pen w/ 5 Meter Cable | Optical Dissolved Oxygen Meter | Portable Optical Dissolved Oxygen Meter |
| DO Range (% Saturation) | 0–100% O₂ in air | 0–200% | 0–100.0% | 0.0–199.9% | 0.0–200.0% | 0-200% |
| DO Range (mg/L) | 0–20.0 mg/L | 0–20.0 mg/L | 0–20 mg/L | 0.00–20.00 mg/L | 0.0–20.0 mg/L | 0 -20 mg/L |
| DO Accuracy (mg/L) | ±0.4 mg/L | ±0.4 mg/L | ±0.4 mg/L | ±0.4 mg/L | <5: ±0.3 mg/L≥5: ±0.4 mg/L | ±0.3mg/L |
| DO Resolution (mg/L) | 0.1 mg/L | 0.1 mg/L | 0.1 mg/L | 0.01 mg/L | 0.1 mg/L | 0.01mg/L |
| DO Accuracy (%) | ±0.7% O₂ | ±2% F.S. | ±0.7% O₂ | ±3% F.S. | ±3% of Full Scale | ±3% |
| DO Resolution (%) | 0.10% | 0.10% | 0.10% | 0.10% | 0.10% | 0.10% |
| Temp. Range | 0–50°C / 32–122°F | 0–50°C / 32–122°F | 0–50°C / 32–122°F | 0–50.0°C / 32–122°F | 0–40.0°C / 32–104°F | 0°–45°C / 32°–113°F |
| Temp. Accuracy | ±0.8°C / 1.5°F | ±0.5°C / 0.9°F | ±0.8°C / ±1.5°F | ±0.5°C / 0.9°F | ±0.5°C (0.9°F) | ±0.5°C / 0.9°F |
| Temp. Resolution | 0.1°C | 0.1°C | 0.1°C | 0.1°C | 0.1°C | 0.1°C |
| Auto Temp. Comp. (ATC) | √ | √ | √ | 10–40°C | 0–40°C | √ |
| Salinity Resolution | 0.1 ppt | 0.1 ppt | ||||
| Barometric Pressure Comp. | Manual (altitude) | Manual (altitude) | 500–760 mmHg(66.7–101.3 kPa) | Manual, 50–115 kPa | Manual (altitude) | |
| DO Calibration | 1-Point (air) | 1-Point (air) | 1-Button (air) | 1-Point (100% air) | 2-Point (0% & 100%) | 2-Point (0% & 100%) |
| Probe Technology | Polarographic DO probe | Polarographic DO probe | Polarographic DO probe | Polarographic DO probe | Optical (fluorescent) DO probe | Optical (fluorescent) DO probe |
| Sensor Warmup Time | ~30 min (cal.) | ~30 min (cal.) | <60 seconds | None | ~10 min (cal.) | |
| Sensor Response Time | <30 seconds | Fast | ||||
| Sensor/Probe Lifetime | >6 months | >1 year | >1 year | |||
| Measures pH | (optional probe) | (optional probe) | ||||
| Measures ORP / mV | (optional probe) | |||||
| Measures Conductivity/TDS | (optional probe) | (optional probe) | ||||
| Measures Salinity | Via compensation | (optional probe) | (optional probe) | Via compensation | Via compensation | Via compensation |
| Memory / Data Storage | Max/Min record | 99 memory points | 99 memory points | +100,000 memory points | ||
| RS232 / Data Output | RS232 | USB | ||||
| Display Type | Dual LCD | Large backlit LCD | Backlit LCD | Backlit LCD | Large LCD | Large LCD |
| Simultaneous DO & Temp. | √ | √ | √ | √ | √ | √ |
| Backlight | √ | √ | √ | √ | ||
| Battery Type | (4) AAA | (4) AAA | 9V | 3.7V 500mAh Rechargeable Li-ion | (6) AAA | Rechargeable Li-ion |
| Charging | USB Type-C(~1.5 hr) | USB | ||||
| IP Rating | IP-67 | IP-67 | IP-67 Housing / IP-68 Sensor | |||
| Spare Probe Heads | 2 spare probe heads | 2 spare probe heads | 2 spare probe heads | 2 spare probe heads | ||
| Electrolyte Solution | √ | √ | √ | √ |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
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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
4.4 ★★★★★
Based on 5 reviews
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Product Reviews
★★★★★ 5
Wow.
Format: Kindle
Okay I’m usually not one for stand-alone’s I’m an avid series reader but my goodness am I so happy I read this! This story was brilliant & so absolutely mesmerizing. I loved reading about each character and their struggles as well as what helped them to move forward. The ending definitely brought tears to my eyes so hard. I truly wasn’t expecting some of what happened in this story. There is about to be a spoiler I am going to reveal so please stop reading if you don’t want the spoiler !!!! ⚠️ ⛔️ ‼️
I loved that the author didn’t do what most authors do with irredeemable male characters. I truly was hoping that Nate Jr. would be apart of the pack after the way he treated Astrea bc he truly didn’t deserve it. Though I must say you did a wonderful job or redeeming him as a person. I cried my eyes out when he walked into the story. I was truly terrified he was going to be a bad guy to the end. However you truly did him such a justice by having him realize his faults & having him redeem himself in the most wonderful way. I’m so sad that he didn’t get to hear how much his brother loved him & forgave him before dying. But again you wrote that ending so beautifully & I just can’t express how much I loved this story & how you took a different route than most authors I have read have. You are a remarkable author Cinder Blaze & I thank you generously for creating such a masterpiece.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 28, 2025
★★★★★ 4
Omegaverse
Format: Kindle
I was pleasantly surprised by this omega verse book. This 1 definitely had a few new twists And I really enjoyed reading it. The main female character was a badass and awesome. She had 1 best friend I wish we could have seen a little bit more of their friendship in this book. Her relationship with the male characters was good not to contrived or super instantaneous. And we had some fun plot twists that I didn't expect. I wish we had more of a follow up on the situation with her family her background and her mother who was a wench. I would definitely recommend this book.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 9, 2025
★★★★★ 5
Wow. Just wow. An amazing read
Format: Kindle
This book was eloquently written, or should I say the authors writing style is very eloquent? I loved the characters, and the story was quite compelling. I absolutely loved the FMC, she's a BA who doesn't take any crap & gives as good as she gets. A certain person certainly got his just desserts & then some, the earlier scenes of which were quite satisfying, had me punching the air & everything haha. All in all 20/10, great read
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 29, 2024
★★★★★ 3
My opinion
Format: Kindle
Let me preface this by saying I really liked the story and the characters however, this book is in desperate need of some sort of editing. It's not misspelled words or formatting, but continuous run on sentences. Redundancies within the sentences. There were a couple of paragraphs that I had to go back and reread 3 or 4 times. Overall, I'd say it was worth the read.
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Reviewed in the United States on May 29, 2025
★★★★★ 5
Beautiful
Format: Kindle
I love omegaverses I had looked at this one multiple times thinking it's just another book about cocky rock star guys that let fame get to their heads and there are parts like that so I wasn't 100% off. I started reading the second book and met the fmc Astraea from the first one,after she had a run in with the aphla from the gym.😁 it gave me the push to stop and read book one first and im so glad I did this book was amazing their was so many characters I fell in love with hoping they will find their happily ever after. the guys were great, the plot was 🎯, and the ending had me 😭😭😭. I was wondering how nate could ever redeem himself, and he did. the last scene with him was sad, but I also felt it was beautiful. thank you to the author for making a beautiful omegaverse book that gave me all the feels. now I'm jumping straight into book two.
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Reviewed in the United States on March 25, 2025
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