Best Assay Kits in 2026

SO MANY TOYS IN A SNAP: Make dozens of cool electronic gadgets - all from one box! A safe and fun way to introduce children ages 8+ to the basics of electrical engineering! Build exciting projects and toys using the included colorful instruction book!

PROJECTS THEY'LL LOVE: So many fun electric-powered projects you can make and play! Ages 8 to 108 will love building 100+ projects! Have fun while building practical skills and learning the basics of circuitry. Build a flying saucer in a snap and watch it take off and sound the alarm! Kit includes 29 Snap Circuits parts.

GREAT GIFT Give the gift of learning and fun this holiday season! Snap Circuits kits will keep kids busy and having fun all year round. Combine with other Snap Circuits kits for even more projects!

DISCOVER CRYSTAL TREASURE - Break open these rocks to reveal amazing crystals inside! Geology doesn’t get more exciting than breaking open rocks and finding crystal treasures. Ag great STEM activity that also makes an excellent gift for girls and boys!

COLORFUL VARIETY – Geodes can form with a wide variety of crystals inside. These geodes have been hand-selected to bring you the best variety available.

100% NATURAL GEODES – These real specimens may be as big as a tennis ball, or as small as a ping-pong ball. Kids will love the thrill of cracking them open to see the natural beauty inside. This STEM activity emphasizes fun and discovery!

YOUR KIDS WILL ENJOY HOURS OF FUN - This extra-large dig brick has 20 incredible gemstone and fossil specimens, allowing your kids to experience the thrill of discovery over and over again. It's sure to become one of their favorite educational activities

REAL SPECIMENS YOUR KIDS WILL TREASURE - This digging kit is so exciting because every specimen is genuine. Your children will uncover genuine gemstones and fossils that are millions of years old, making this a truly unforgettable educational toy

EVERYTHING YOUR CHILD NEEDS – This National Geographic science kit has all the tools your child needs to dig like the pros! In addition to the dig brick, there’s a chisel, brush, and magnifying glass. Hands-on learning has never been so fun

EXCAVATE INCREDIBLE PYRITE – Excavate genuine pyrite specimens from each Gold bar-shaped dig brick in the kit and learn more about the Gold Rush and Fool’s Gold in the full-color learning guide

MADE TO SHARE – This Fool’s Gold Dig kit has enough individually-wrapped dig bricks and digging tools to share with friends and classmates. A great collaborative education activity in classrooms or at parties

INSPIRING SCIENCE – The activity kit encourages a deeper love of scientific discovery and earth science, allowing kids to get a hands-on experience excavating and identifying rock specimens

KNOW BEFORE YOU GROW | Grow the healthiest, sustainable lawn and garden with the most accurate and easy to use professional soil test kit on the market

ROOTED RESULTS | Unlike at home ph meters and test strips, our mail-in professional lab analysis measures 13 plant available nutrient levels including Nitrogen and pH

FOR ANY GROWING SCENARIO | Tests any soil type and gardening condition - lawn & turf, vegetable gardening, flowers, compost, trees, vines, ornamental landscape, house plants, soil-less media or hydroponics

RETINOL ANTI-AGING STARTER KIT – Perfectly-Sized Products Specially Selected to Introduce Your Skin to the Beautiful Benefits of the Original Retinol Skincare Line

AGE-DEFYING SKINCARE ON-THE-GO – Ideal for Travel or Anytime You Want to Conveniently Take Your Anti-Aging Skin Renewal Care Routine with You

CURATED COLLECTION – Cleanse, Treat, Repair & Hydrate with Top Selections from Our Anti-Aging Skincare Regimen; Chosen for Noticeable Results, Decision-Free

PREMIUM QUALITY: Updated V1.2 on 1/30/23 in response to customer feedback. Easier to build and break down, thus reducing the chances of user-induced ripping. The Bella Bora Still Air Box mushroom grow tent, glove box is built to last. U.S. Design Patent No. D975,310S & D983,991

EXPERT SUPPORT: Get expert mycologists support. Grow mushrooms without spending high costs on a laminar flow hood mycology.

IMPROVE YIELD: Higher success rates for mushroom grow box, mushroom fruiting chamber, hydroponic plants, inoculating petri dishes, spore syringes, liquid culture, and plant tissue culture.

Kit for digging Real Gold, pyrite, Rainbow Stone or Obsidian Stone out of clay brick

You will find Real Gold in 1 od 24 Boxes

Clay is made easy to dig into

Scope of application: This Repair set fits for model 3/4 Inch to 1 Inch 975XL and 975XL2 reduced pressure principle backflow preventers.

Set combination: Repair Kit components include two Check Seat O-Rings, two Check Seats, two Retaining Bolts, two Seal Ring Retainers, two Seal Rings, two Poppets, one #1 Check Spring, two Cover O-Rings, one #2 Check Spring, one Relief Valve Stem O-Ring, one Relief Valve Seat O-Ring, one Relief Valve Seat, one Spring, one Retaining Bolt, one Seal Ring Retainer, one Seal Ring, one Lower Plunger, one Diaphragm, and one Upper Plunger.

Material: made of materials with excellent performance and longer service life, it has strong durability, corrosion resistance and rust resistance. High quality materials make it long-term use.

【Size and Packing】17.7x17.7 inch(45×45 cm) 1 x pre-printed cross stitch cloth, 1 x English instruction manual, 1 x cross stitch drawing, 2 x needles, enough thread already sorted (extra 30% embroidery thread)

【Suitable for beginners】The manual includes embroidery diagrams and preset canvases, teaching you how to handle embroidery threads, printing patterns, and complete tools. It is suitable for children, adults, and beginners. You only need to follow the preset path to complete the embroidery, which is suitable for beginners. scholar

【11CT pre-printed pattern fabric】The cloth has pre-printed color patterns for cross stitch Stamped kits , which is very helpful for beginners in embroidery. The cross stitch pattern is clearly printed with small squares that are colored and marked with symbols. Each symbol corresponds to a cross-stitch thread color. Symbols are written on the graph, and the corresponding line colors are written below the graph.

Small size, light weight, easy to carry.

The conductive connecting wire is made of high-quality materials, which is comfortable to the touch and highly conductive.

The electroplating surface treatment power supply has high efficiency, and has the functions of automatic voltage regulation, steady current, overvoltage and overcurrent protection of thyristor rectifier, and undervoltage and phase loss protection functions.

FDA Authorized 15-Minute Self-Test: The test is a 15-minute self-test to detect whether or not an individual has COVID-19. The test can be completed in the comfort of your own home without the need to ship your sample to a lab.

Non-Contact Technology for Safe & Hygienic Use: With a built-in infrared temperature sensor, the iHealth PT3 thermometer can read a person’s body temperature within 1.18 inches from the center of the forehead without physically touching the person.

The iHealth COVID-19 Antigen Rapid Test is a lateral flow assay intended for the qualitative detection of nucleocapsid protein antigen from SARS-CoV-2.

Take control of your and your family's health. AssayMe enables to monitor conditions through a simple, at-home, self-administered urine test. We offer a convenient, accurate, cost-effective way to get a timely interpretation of 10 important health parameters.

With AssayMe, you can track your body’s wellness based on 10 wellness parameters: Leukocytes, Nitrite, Urobilinogen, Protein, pH, Specific Gravity, Ketone, Bilirubin, Ascorbate, Microalbumin. You will receive an overall wellness score detailed feedback on each wellness parameter.

Safe & accurate in 60 sec. For a more accurate result, our technology uses two QR codes on the test strip. Just point the camera and the app will automatically scan the test strip and you will get an accurate result.

Homogeneous assay for cell viability, proliferation, cytotoxcity and anticancer agents.

Method: Colorimetric assay (570nm). A spectrophotometer or plate reader is required, but not provided.

Samples: Cell culture. Species: All. Detects 950 cells

BD Veritor System offers test assays that can be used to process samples provided to the lab in an appropriate transport medium

The first CLIA-waived Digital Immunoassay (DIA), a new category of diagnostic tests where the assay and instrument work together to combine advances in detection particles, optical image recognition and interpretation algorithms to improve accuracy

Advanced Particle Technology enhances sensitivity by using a proprietary process to produce highly stable modified colloidal metal particles, helping improve test performance

Pack of 90 kits.FDA Authorized 15-Minute Self-Test: The test is a 15-minute self-test to detect whether or not an individual has COVID-19. The test can be completed in the comfort of your own home without the need to ship your sample to a lab.

Expiration Date Extension: On July 8, 2022, the FDA granted another three-month shelf-life extension for the iHealth COVID-19 Antigen Rapid Test, which extended the shelf-life of all iHealth tests from 6 months to 12 months. Please refer to the FDA website for the detailed list of extended expiration dates by lot numbers: https://www.fda.gov/media/158007/download

The iHealth COVID-19 Antigen Rapid Test is a lateral flow assay intended for the qualitative detection of nucleocapsid protein antigen from SARS-CoV-2.