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Ships within 48 hours · Estimated delivery Jul 18 - Jul 23
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Description
GL09 4G Version 8 Channel GSM Alarm Security System Module, GL09 4G1. Multi band support: DC 5V 16V power input, 8 alarm detection channels, users can set different content for each alarm information channel. You can choose the alarm input port as NC or NO. 2. The built in 4G module can work anywhere in the world through 4G, 3G and GSM networks. 3. Easy to operate and use: We have customized an app that supports iOS Android systems, and you can set it up just by sending a text message through the app. 4. Multiple
1. Multi-band support: DC 5V-16V power input, 8 alarm detection channels, users can set different content for each alarm information channel. You can choose the alarm input port as NC or NO. 2. The built-in 4G module can work anywhere in the world through 4G, 3G and GSM networks.
3. Easy to operate and use: We have customized an app that supports iOS/Android systems, and you can set it up just by sending a text message through the app.
4. Multiple groups of numbers can be set: up to 6 groups of called numbers can be set. When the alarm input has a trigger signal, the alarm information will be sent to the alarm number, and the alarm number can also be dialed directly.
5. Low voltage alarm function: low power sleep mode design, real-time detection of battery voltage and low voltage alarm, suitable for battery-powered applications.
6. Short circuit alarm: input is switch signal. When the input port is short-circuited with the ground (GND), an alarm message will be sent to the preset mobile phone or the set alarm number will be dialed. The content of the alarm message can be determined by you 7. This product can be powered by DC power supply or by battery (battery not included)
Specification:
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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]
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4.1 ★★★★★
Based on 15 reviews
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Product Reviews
★★★★★ 5
Helps clear up dark spots
Size: 8.45 Fl Oz (Pack of 1)
I have been using this product for a few weeks now and can say it's cleared up of few spots on my face. Definitely worth buying this product
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Reviewed in the United States on April 23, 2026
★★★★★ 5
Another Amazing Product from SKIN1004
I own at least 4 products from SKIN1004, because they really are a great skin care brand to invest in with. For reference, I have dry sensitive skin, I am prone to dark spots, some acne, dry patches and bigger pores. I have always had bad experiences with toner's so I was really hoping this would work for me. And it did more than that! I do believe my acne has gone down since using this, and to really test it out I finished the bottle after 5 and half months of daily morning and nighttime use. My skin feels smoother and bit brighter, more than anything it really keeps your skin clean without drying it out. It doesn't have a particular smell, the consistency is like water, and when you apply it is a bit tacky but no worries once it dries down completely, that goes away. This toner could be used by all skin types in my opinion. I will be trying their brightening toner soon, which I am even more excited about! Would repurchase.
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Reviewed in the United States on February 2, 2026
★★★★★ 5
Excellent product for sensitive skin
If you have sensitive skin, this product is essential for your skincare routine. It is excellent; I experience frequent acne breakouts, and it helps soothe my skin.
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Reviewed in the United States on May 22, 2026
★★★★★ 5
Great toner
This toner has helped my skin help it from breaking out. This product has helped my skin look flawless
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Reviewed in the United States on May 9, 2026
★★★★★ 5
A Skin Saver
I've been using the Centella toner for a week now, and it's quickly become a staple in my skincare routine. Infused with Centella Asiatica extract, this toner is perfect for calming irritated or sensitive skin. The texture is light and watery absorbs quickly without any sticky residue making it ideal for layering or using as a refreshing mist throughout the day.
It is very soothing reduces redness and inflammation, especially after exfoliating or sun exposure. It is very hydrating and gives a subtle moisture boost without clogging pores.
It has no alcohol or fragrance, so it's great for sensitive or acne-prone skin.
I use it after cleansing and before serum, and I’ve noticed my skin feels more balanced and less prone to breakouts or irritation. It pairs well with other products and hasn’t caused any pilling or sensitivity.
If your skin leans sensitive, inflamed, or needs a calming reset, this Centella toner is worth trying. Affordable, gentle, and effective. I definitely recommend this product
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Reviewed in the United States on July 30, 2025
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