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Description
GL09-B 3G 8 Channel GSM SMS Alarm System Module For Battery Operated Alert, GL09-B 3G1. Low power consumption, suitable for battery powered 8 channel GSM alarm module 2. The 3G version is compatible with 2G networks and can be used in the United States, Australia, Europe, Chile, Singapore and other countries. 3. This product can be powered by DC power supply or by battery (the battery is not included in the product package) 4. Eight way alarm detection, each alarm SMS user can set different content by himself 5. You can choose the
1. Low power consumption, suitable for battery-powered 8-channel GSM alarm module
2. The 3G version is compatible with 2G networks and can be used in the United States, Australia, Europe, Chile, Singapore and other countries.
3. This product can be powered by DC power supply or by battery (the battery is not included in the product package)
4. Eight-way alarm detection, each alarm SMS user can set different content by himself
5. You can choose the input port as NC or NO mode alarm
6. Up to 6 groups of called numbers can be set. When the alarm input has a trigger signal, an alarm message will be sent to the alarm number, or the alarm will be called directly
7. Application scenarios: mainly home security, warehouse security protection, remote monitoring of industrial standby status, remote unmanned sites, security protection (connection to various switch signal output sensors such as human detection, smoke, fire, water level monitoring, and gas)
8. Support low battery alarm
9. Support sleep power saving
10. Working voltage: DC5V-DC15V
Specification:
| Package Weight |
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
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4.8 ★★★★★
Based on 25 reviews
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Product Reviews
★★★★★ 5
Flavor is great, works well!
Flavor Name: Peppermint
Excellent when using 2, great flavor/taste. Thank you!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 29, 2025
★★★★★ 5
Like the dissolvable feature
Flavor Name: Peppermint
Cardiologist recommended one tablet nightly 30 minutes before bed to protect the lungs from covid. His other recommendations were standard protocol. Had never heard of this but know that melatonin is supposed to help with sleep. Had tried melatonin for sleep, at higher strength, but effect wore off after a week. Suprisingly, this seems to help with sleep as well. Large count at reasonable price.
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Reviewed in the United States on April 7, 2021
★★★★★ 4
Sleep aid that helpd.
Flavor Name: Peppermint
I purchased these because I understand that the natural production of melatonin decreases drastically after the age of 40. I have been using another brand that much more expensive for a lower dosage.
I read the other reviews and decided to give these a try. I have been taking them for about 30 days. I think, I have a good understanding of the pills.
It appears that the other brand had a more consistent effect. They sublingual and you would feel drowsy after about 20 minutes. These are slow desolve and take effect after 30 minutes or so.
My only issue was consistency. I would say that 90% of the time I would be drowsy. Once or twice a month they would have a minimal effect. They are a stronger dose, 5 mg versus 3 mg of the other product. They are less expensive and they work most of the time.
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Reviewed in the United States on May 16, 2024
★★★★★ 5
No after taste
Flavor Name: Peppermint
Easy on digestive system
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Reviewed in the United States on July 16, 2025
★★★★★ 5
Excelente
Flavor Name: Peppermint
Excelente
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 4, 2026