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Ships within 48 hours · Estimated delivery Jul 6 - Jul 11
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Description
4 in 1 Gasmonitor, CO H2S O2 LEL Veelvoudige Indicator Geluidslicht, Trilling, Alarm Gaslekdetector met Achtergrondverlichting Handheld Gasdetector voor Thuis Chemisch Laboratorium[Hoge gevoeligheid] Uitgerust met een zeer gevoelige sensor, zorgt deze gasmonitor voor nauwkeurige metingen met uitstekende herhaalbaarheid en korte responstijd. [3 Alarmmodus] De gasdetector beschikt over geluids , licht en trilalarmen bij het detecteren van gassen, waardoor een snelle en effectieve melding mogelijk is. Alarmwaarden voor hoge en lage concentraties kunnen worden ingesteld. [Meerdere oplaadopties] Deze gastester is oplaadbaar en kan
- [Hoge gevoeligheid] Uitgerust met een zeer gevoelige sensor, zorgt deze gasmonitor voor nauwkeurige metingen met uitstekende herhaalbaarheid en korte responstijd.
- [3 Alarmmodus] De gasdetector beschikt over geluids-, licht- en trilalarmen bij het detecteren van gassen, waardoor een snelle en effectieve melding mogelijk is. Alarmwaarden voor hoge en lage concentraties kunnen worden ingesteld.
- [Meerdere oplaadopties] Deze gastester is oplaadbaar en kan via USB worden opgeladen vanaf een computer, auto, powerbank en andere handige methoden.
- [Backlit Display] De gasmonitor heeft een scherm met achtergrondverlichting met hoge resolutie dat dag en nacht heldere metingen levert, waardoor de zichtbaarheid zelfs bij zonlicht of bij weinig licht wordt gegarandeerd.
- [Breed toepassingsbereik] Deze veelzijdige gasdetector kan op verschillende gebieden worden gebruikt, waaronder de maritieme, chemische, agrarische, laboratorium-, bergbeklimmen-, farmaceutische industrie en meer.
Specificaties:
Artikeltype: Gasmonitor
Materiaal: ABS
Model: ST8904
Batterij: Lithiumbatterij 3,7 V 1800mAh (ingebouwd)
Basisparameters:
CO: 0-999 ppm
H2S: 0-500 ppm
O2: 0,0-30,0% VOL
LEL: 0-100% LEL
Hoe te gebruiken:
Zet het apparaat aan om het direct te gebruiken.
Paklijst:
1 x gasmonitor
4 x accessoires
1 x USB-kabel
1 x gebruikershandleiding
1 x opbergtas
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
4.8 ★★★★★
Based on 2350 reviews
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Product Reviews
★★★★★ 3
They work, but not really worth it
Style: Bundle, Size: 2 Piece Set
Off the bat, they work pretty well. It’s not a miracle and they do work but I’d look for something else before buying these again. The micro needle ones did help deeper acne but they break way too easily to justify buying.
The packaging sucks and is confusing. The micro needle dots are two parts that work awfully together. I broke 2 of the 9 just trying to get them off the package. The miracle dots are slightly better but if you get it stuck to your finger trying to get it off, that dot’s a wash.
The adhesive is good in some places and not so good at the edges. A few stayed on well and those that did were nicely transparent. These are not invisible but I’d run out with one on and I have darker skin.
I took them off and noticed that fluid had been drawn out and overall, things were flatter and more calm. However, the amount of these things I threw away due to the awful packaging and just not adhering, I’d have to be at a last ditch effort to buy these again.
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Reviewed in the United States on January 25, 2020
★★★★★ 5
They really do work, although it's a little hard to peel them off the backing.
Style: Bundle, Size: 2 Piece Set
I bought this combo pack because I had one of those deep cysts on my chin that I knew wasn't coming out anytime soon. I already knew the hydrocolloid patches for whiteheads would work, because hydrocolloid bandages work just fine for drawing things out of zits that have come to a head. I was more reluctant about the deep patches, with the microneedles, because it just seemed like nonsense that couldn't possibly work.
They DO work! I put one on that deep cyst and when I woke up, it was 75% smaller than it had been when I went to bed. I couldn't believe it. I was so impressed that I actually said so out loud, to myself, alone, in my bathroom. Normally, that thing would've stuck around for weeks, getting angrier and redder but never coming to a head. I used one again the next night, and in the morning, it was pretty much gone, and it never came back. I highly recommend these.
One issue I have with them is that peeling them off the backing it a bit of a delicate process. You have to be careful not to fold the edge over onto itself, which is easy to do because they're so small and thin. You also have to make sure to place them in the exact right place the first time. But despite these problems, I still gave them 5 stars because they work so well, so there's that.
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Reviewed in the United States on March 18, 2020
★★★★★ 5
Worked like a charm
Style: Bundle, Size: 2 Piece Set
I’ve tried other acne patches before and they’ve always pulled excess oil out of my pores, which ended up drying, scarring, and leaving behind a dry patch when compared to the rest of my face. These effects were especially bad for my cystic acne, which always ended up more inflamed and painful after treatment.
The Rael hydrocolloid patches gently pulled out all of the sebum from several pimples that I’d avoided picking at; with other brands, the patches only pulled anything out from pimples that had already been picked at/burst. The micro needle patch also relieved my cystic acne overnight. The pimple is no longer inflamed or painful. When I took the patch off, I could see the liquid and oils that it had pulled out BUT didn’t experience the scarring I have with other patches. Other reviews mention that the patches are fragile, but I don’t necessarily think that’s any different from the other brands I’ve tried. I had no problem trying to get one out of the package on the first try.
Overall, I think these are a really good fit for folks with oily skin who experience scarring with other patches. These definitely pull more sebum and not as much oil, so you should see your pimples decrease in size without adding to the inflammation. The patches adhere well and stayed on all night without peeling off (even though I’d accidentally bunched up some edges on the hydrocolloid patches when applying). I’m definitely going to keep a stock of both types readily available!
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Reviewed in the United States on February 23, 2020
★★★★★ 5
Praise Rael.
Style: Bundle, Size: 2 Piece Set
I suffer from cystic acne (on my chin and jawline, so probably connected to hormones) as well as dematillomania, or skin picking disorder. It's so hard for me to not pop the big honkers, especially when these painful zits have been around for days/weeks. All I want is clear skin, but cystic acne combined with skin picking leaves me with scars that take months to fade even when I'm pimple-free .
I've been using Rael's Miracle Patch (pink package) for awhile. This is a great product, and works best on more surface-level zits. Last night, I tried the Acne Healing Patch (green package) on a persistent cystic zit I've already tried to extract, plus another cyst brewing on the other side of my chin. I've used so many different products to treat cystic acne, but nothing has worked like Rael's Acne Healing Patch. I kept the patches on overnight, and in the morning I found both had reduced significantly in size. The zits are well on their way to healing, and I finally feel like I will be able to treat cystic blemishes effectively and go concealer-free in the coming months.
I never write reviews, but I felt I should share this experience with Rael patches. Acne can be so mentally debilitating, and I've been helped by a lot of fellow acne sufferers who share their experiences in product reviews. I hope my review is helpful for someone else.
Thank you Rael, for a truly game-changing cystic acne treatment!
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Reviewed in the United States on May 8, 2020
★★★★★ 5
Perfect toy for an active dog!
Color: Large size (7.9")
My dog absolutely loves this ball with handles! It’s quickly become one of his favorite toys, and he gets excited every time we bring it out to play.
The vibrant colors are a huge plus—they make it super easy to spot in the grass, which saves a lot of time during outdoor play sessions. The handles are great for interactive play too, especially for tugging and tossing.
I’m really impressed with how well it’s holding up. Even with constant pulling, tugging, and rough use, it’s remained durable and hasn’t shown any signs of wearing out.
Overall, I’m very happy with this purchase—and if my dog could write reviews, it would definitely get his paw stamp of approval! 🐾
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Reviewed in the United States on May 24, 2026