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πŸ”‹ comimark 2pcs 12v low voltage buzzer alarm module - under voltage protection for on-board battery logo

πŸ”‹ Comimark 2Pcs 12V Low Voltage Buzzer Alarm Module - Under Voltage Protection for On-Board Battery Review

3

Β·

Very good

Revainrating 4.5 out of 5Β Β 
RatingΒ 
4.7
πŸ–₯️. Single Board Computers, πŸ’» Computer Components

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Description of πŸ”‹ Comimark 2Pcs 12V Low Voltage Buzzer Alarm Module - Under Voltage Protection for On-Board Battery

Size:2.9*3.0cm. 9V battery:when battery occurs overdischarge(battery voltage is lower than 8V),red indicator light will be on and buzzer will make sound. Sound and light alerting. Package Includes : 2PCS Module (If the number of products received is incorrect, please contact us . we will refund or give you a replacement). We highly appreciate all customers opinions to improve the selling, also if anything you unsatisfied, please contact us for probable best solution.

Reviews

Global ratings 3
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    2
  • 4
    1
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    0
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Type of review

Revainrating 5 out of 5

Works as it should. suitable for computer components

I use this as a low battery indicator in a children's toy but it also indicates when an element is working too hard. Good workout for little kids.

Pros
  • Electronics
Cons
  • I will add later

Revainrating 4 out of 5

Reliable, easy-to-install control scheme.

If you found this review helpful, please help me by clicking the helpful button below. This little circuit is great for preventing battery damage from over-discharging. You can also use it to protect your devices. It is easy to install and low voltage adjustment is a breeze! You will most likely need a relay to control your device. Just turn on the relay to turn off the battery or device. I am using a relay in a diesel heater to protect the AGM auxiliary battery. The buzzer is loud enough to…

Pros
  • Single Board Computer
Cons
  • Negative Impression

Revainrating 5 out of 5

Inexpensive and works well for computer components

I took a chance because I need 2 simple low battery alarms and they are cheap. I tested at 12V on my variable power supply. The rather loud buzzer turns on at 12.0V and turns off at 12.2V. Turning the potentiometer clockwise increases the voltage at which it operates. I tested it at 24.0V and it got louder with a higher tone. I'm not sure if it can handle higher voltages without damage or reduced lifespan. I asked a question and received no response from the seller. I'm not surprised that the…

Pros
  • Computers and accessories
Cons
  • Zero