Walmart US Ecommerce Website

GENERAL MERCHANDISE

PHARMACY

GROCERIES

VUDU

SPARK

PHOTO

ADVERTISING

SAVINGS CATCHER

GIFTCARDS

INHOME

AFFILIATE

ONEAPP

LOTUS

HELP

SMART_REORDER

GROCERY

CONV_COMMERCE

Buy Box Ad Container Module for Desktop

Custom HTML Module - About Klarna

Custom HTML Module - About SalesFinancing - Second update

You'll choose a plan at checkout.

#515357

I want delivery savings with Delivery Pass

#0071dc

NEW Fulfillment Tue Apr 15 2025 2:17 PM EDT

MTZ Team | Marquee 1 Ad | Item Page

MTZ Team | Marquee 2  Ad | Item Page

MTZ Team | Skyline Ad | Item Page

Other products of interest

MTZ Team | Sponsored Product Carousel - Item Page

More items to explore

MTZ Team | Sponsored Product Carousel - Item Page Broad 

NEW AddonServicesRedesign Fri Jul 18 2025 1:30 PM EDT

NEW AddToCart Mon Jul 14 2025 3:50 PM EDT

NEW AddToCart Tue Apr 15 2025 2:19 PM EDT

NEW BrandBoxDisplayAd Mon Jul 14 2025 9:14 PM EDT

NEW BrandLink Wed Apr 23 2025 12:07 AM EDT

NEW Breadcrumb Mon Apr 07 2025 8:23 PM EDT

Walmart Rewards Mastercard

NEW FinancingOptions Tue Dec 10 2024 3:32 PM EST

I want shipping & delivery savings with

NEW Fulfillment Mon Jul 14 2025 4:00 PM EDT

NEW InternationalShipping Mon May 18 2026 1:02 PM EDT

New Item Page - Nutrition Value Placeholder Module, Wednesday, February 08, 2023, 5:11:53:90 pm

New Item Page - Product Description Placeholder Module, Wednesday, February 08, 2023, 5:14:04:38 pm

New Item Page - Product Ingredients Placeholder Module, Friday, February 10, 2023, 10:34:23:79 am

New Item Page - Product Specifications Placeholder Module, Wednesday, February 08, 2023, 5:15:29:61 pm

New Item Page - Reviews Placeholder Module, Wednesday, March 22, 2023, 10:04:29:34 am

New Item Related Shelves Module, Thursday, June 15, 2023, 6:08:51:10 am

 Price Match Policy

Prices, terms, and availability may vary online, in stores, and in–app. If the advertised price is not shown here, inventory at the advertised price may now be sold out. Please see the other offers, if available, while quantities last. Some items may be available from Marketplace Sellers, who set their own prices, and are not eligible for price match. Items sold in store by Walmart may be eligible for a price match to online items shipped and sold by Walmart. For variable weight items, price shown is an estimated price only – you will be charged for the actual weight of the item. See our

NEW LegalPriceDisclaimer Mon Jul 14 2025 4:11 PM EDT

NEW LegalPriceDisclaimer Wed Apr 30 2025 12:13 AM EDT

NEW ListsAndRegistries Tue Apr 15 2025 4:50 PM EDT

NEW PaymentPlans Mon Jul 14 2025 4:15 PM EDT

NEW PaymentPlans Tue Apr 15 2025 1:31 PM EDT

NEW PriceInformation Tue Apr 15 2025 1:30 PM EDT

NEW ProductDescriptionPlaceholderATF Tue Jul 08 2025 11:41 PM EDT

NEW ProductFlags Thu Apr 10 2025 11:42 PM EDT

NEW ProductHighlightsPlaceholder Wed Jul 02 2025 12:43 AM EDT

NEW ProductImages Tue Apr 15 2025 2:13 PM EDT

NEW ProductName Tue Apr 15 2025 12:53 PM EDT

NEW ProductReturnPolicyDetails Tue Dec 10 2024 3:17 PM EST

NEW ProductReturnPolicy Mon Jul 14 2025 5:04 PM EDT

Return Policy

NEW ProductReturnPolicy Tue Apr 15 2025 2:28 PM EDT

NEW ProductStickyBuyBox Wed Jul 02 2025 12:55 AM EDT

NEW PromoDiscount Tue Apr 15 2025 6:53 PM EDT

New SellersSecondaryBuyBox Module, Tuesday, September 05, 2023, 4:02:21:76 pm

NEW ShopWithConfidence Thu Jan 15 2026 2:20 PM EST

NEW SocialProofMessage Tue Apr 15 2025 7:17 PM EDT

NEW SoldAndShippedBy Mon Jul 14 2025 5:04 PM EDT

NEW SoldAndShippedBy Tue Apr 15 2025 2:23 PM EDT

New!

More savings, less stress.

HSK_Subscribetosave_E_v2

NEW SubscriptionOptionsModule Tue Apr 15 2025 6:44 PM EDT

NEW SubscriptionPriceMessage Wed Apr 23 2025 6:48 PM EDT

NEW Variants Wed Apr 23 2025 11:01 PM EDT

[Sticky] BuyBoxAd Mon Aug 11 2025 3:59 AM EDT

[Sticky] PriceInformation Mon Jul 14 2025 4:03 PM EDT

Syndigo

True

dWeb: L1/L2- Comparison Chart- WK 07, 2026

#000000

Item Carousel - Rich Relevance 1

RR carousel

Item Carousel - Rich Relevance 2

RR carousel 2

Item Carousel - Rich Relevance 3

DO-66 Dissolved Oxygen Meter Portable Digital DO Tester Analyzer for Aquaculture Aquarium

<ul><li>DOMeter</li><li>AquariumDOMeter</li><li>DissolvedOxygenTester</li><li>DissolvedOxygenAnalyzer</li><li>DissolvedOxygenTestPen</li></ul>

Brand

Assembled Product Dimensions (L x W x H)

Features 1.Dissolved oxygen meter is equipped with 0% and 100% 2‑point automatic calibration buttons, convenient for calibration. 2.Temperature compensation function automatically recognizes and converts corresponding value under the difference between actual solution temperature and the standard temperature. 3.The instrument can be divided into two parts, the sensor and the electronic unit, and the electrode can be removed and replaced. 4.Sensor uses thin‑film dissolved oxygen electrodes, and the electronic unit is an integrated operational amplifier + microcomputer chip. 5.Mainly used in agriculture and aquaculture, water treatment, and also a good helper for household pet fish.SpecificationItem Type: DO Meter Material: ABS Measuring Range: Dissolved Oxygen: 0-199.9%, 0-16.5mg/L Temperature: 0℃-50℃, 32℉-122℉ Resolution: Dissolved Oxygen: 0.1%, 0.01mg/L Temperature: 0.1℃, 32.18℉ Accuracy: Dissolved Oxygen: ±1.5%F.S (Full Scale) Temperature: ±1℃, ±33.8℉ Residual Current: The reading will not return to zero when ≤0.15mg/L Response Time: ≤15 Seconds Temperature Compensation: 0℃-50℃ Power Supply: 2 x 1.5V AAA Dry Battery (Battery Not Included) Working Temperature: 0℃-50℃, 32℉-122℉ How to Use: 1. Rinse the electrode with deionized water or rinse solution. Press On/Off to turn on the machine. Immerse the electrode in the zero-oxygen solution for at least 3 minutes and keep shaking gently until the displayed value is stable. 2. Press the on/off key until the second line of the "CAL" character is displayed, and gently shake the electrode. When the displayed value is stable, press the "%/L/mg" key, the display DO value is 0%, and the completion is zero. Calibration. 3. Clean the electrode, immerse the electrode in a saturated dissolved oxygen solution, and continue to gently shake the electrode until the displayed value is stable. 4. Gently shake and press the ON / OFF key until the second line of the display shows the "CAL" character, and then press the ℃/°F key, and the DO value of 100.0% will be displayed at this time, and the slope correction is completed.Package List1 x DO Meter 1 x Plastic Storage Box 3 x Sandpaper 1 x Electrode Protective Cover 1 x Manual

Assembled Product Weight

Universal Product Code (UPC check)