Double FS Kit

Two full kits. One to keep, one to give.

Everything in the full kit, doubled. Do your whole home and still have a complete, sealed kit for family, a new parent, or a backup.

$99.00two complete kits · free shipping

2 spray + 2 drip + 2 UV lights + 2 reference cards

Double FS Kit: two spray bottles, two drip bottles, two UV lights, two cards

What is in the box

Two of everything.

01

Two spray bottles, filled

Cover walls, dust, soil and big surfaces, twice over.

02

Two drip-tip bottles, filled

Precise tests for dishes, mugs, toys and small items.

03

Two 365 nm UV lights

One for each kit. Tuned for this reagent.

Why two

So you are not the only one who knows.

  • Test your whole home and keep a sealed backup
  • Give a complete kit to a new parent or family
  • Split the spray and drip across two people
  • Never run out mid-project
A surface glowing green under UV, showing lead

How it works

Three steps. About thirty seconds.

Spray or drip

Use the spray for area, the drip for items you can hold.

Shine the UV

A true 365 nm light. Give it a few seconds.

Green glow = lead

A bright green glow is a positive. No glow, no lead at that spot.

Read this first

Not sure you need two?

If you only want to test your own home once, the single kits do that. The double is for people who want a spare, or who want to put a kit in someone else’s hands too.

Your problem is my problem

Why this exists.

I built this because I was tired of watching kids get poisoned by things nobody thought to check. If you ever hit something you cannot read, mail me a sample and I will run it on my XRF for free. There is never a charge for follow-up.

eric@detectlead.com

Quick FAQ

Straight answers.

How is this different from the full kit?

It is two complete full kits. Same contents, doubled. Nothing new to learn.

Can I give one away?

That is the point. One stays sealed so you can hand it to family or a friend who needs it.

Do both kits have a light?

Yes. Two 365 nm UV lights, one per kit.

Can I refill them later?

Yes, refills are sold separately and the spray and drip share the same liquid.

Test your home. Then hand one to someone you love.

Two complete kits. One straight answer per surface, about thirty seconds each.

Double FS Kit  · two complete kits · $99.00

the number that matters

2.2 µg/day. That’s the line.

The FDA Interim Reference Level is 2.2 µg/day for a child, 8.8 µg/day for an adult. That’s the daily intake your body can clear without measurable harm.

A single painted plate at the rim can leach enough lead in a meal to put a 2-year-old over the line. One dusty windowsill in a pre-1978 home can do it in a week. One solder joint in a kitchen faucet can do it every glass of water.

ppb on a lab report is concentration. µg/day is dose. Concentration tells you lead is present. Dose tells you whether the source matters. This kit finds the source.

everything you get

The whole stack.

Two spray bottles, filled (with extender rings) — 1,000 sprays $70 value
Two drip-tip bottles, filled — 7,200 taps $70 value
Two 365 nm UV flashlights $50 value
Two non-toxic reference cards $10 value
Two complete kits at the price of one -$99
“Your problem is my problem” — free XRF follow-up, both kits priceless
30-day money-back guarantee
Total stack value $200+

If all this did was let you hand a sealed kit to your spouse, your mom, or a new parent who needs it, would it be worth it?

It’s $99.

§ real customers

Why families buy two.

Verified buyers, double-kit and family use cases.

★★★★★

“Now with two little ones I have peace of mind.”

Angelina · Feb 2026 · verified · judge.me

Suspected there was lead in my house, but thanks to this kit I know exactly where (plot twist, it wasn't where I thought!). Now with two little ones I have more peace of mind.

★★★★★

“I found lead in his favorite cup.”

Andrea · Jan 2026 · verified · judge.me

I ordered this because my pediatrician said my son's lead level was slightly elevated and she couldn't tell me why. We ran the kit through the house and the drip bottle lit up the decoration on his favorite plastic-handled cup. We pulled the cup, retested three months later, and his level dropped.

★★★★★

“75-year-old house, finally a straight answer.”

Andrew · Jun 2025 · verified · amazon

I've tried every lead test on the market over 20 years. This method blows them all away. Results in seconds, no false positives, and I can trust what I'm seeing.

132+ verified reviews on Judge.me and Amazon · 4.6 / 5 average.

not buying today?

find out your kid’s µg/day first.

a 60-second quiz that returns the FDA IRL number for your specific household. dishes, paint, baby food, water. no kit needed to take it.

take the µg/day quiz →

or request the SDS · scan a baby-food lot

Ingredients & Safety

Reagent ingredients

  • Isopropyl alcohol (CAS 67-63-0) — ≥97.25%
  • Methylammonium bromide (CAS 6876-37-5) — 1.5%
  • Mandelic acid (CAS 90-64-2) — 1.25%

Regulatory status

Methylammonium bromide, the active ingredient, is manufactured and imported by Fluoro-Spec Inc. under a U.S. EPA-authorized Low Volume Exemption (LVE) granted under Section 5 of the Toxic Substances Control Act (40 CFR 723.50). This authorization is specific to Fluoro-Spec Inc.

The product’s methylamine content is held below the concentration threshold for exempt chemical mixtures under DEA regulations (21 CFR 1310.12). This product is not intended or suitable for use as a chemical precursor.

Handling

The reagent is a flammable liquid. Keep away from heat, sparks, and open flames. Use in a well-ventilated area. Avoid contact with eyes; wash skin after use. Keep out of reach of children. Do not ingest. Eye protection is recommended.

Safety Data Sheet

A full Safety Data Sheet (SDS) prepared in accordance with 29 CFR 1910.1200 is available at no cost. Request the SDS →