Battery Undervoltage Alarm Module, 10-20V Range
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Prices updated: 12 Oct 2026
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About this product
A low-voltage alarm module that monitors battery voltage and warns when it drops below its alarm threshold. This version covers the 10-20V range, which suits 12V lead-acid batteries and similar battery-powered systems used in DIY power projects.
Specifications
- Voltage range
- 10-20 V
- Function
- Low-voltage alarm
- Application
- Battery voltage monitoring
Frequently asked questions
Which battery voltage is this module for?
It is designed for the 10-20V range, such as 12V lead-acid batteries. For 6-10V systems, use the 6-10V version of this module.
How do I connect the module to a battery?
Connect the module across the battery terminals as marked on the board, positive to positive and negative to negative, and keep the battery voltage within 10-20V.
