ขาย โมดูลป้องกันแรงดันไฟฟ้าแบตเตอรี่ 12V Buzzer ราคาที่ดีที่สุด

#12V #On-Board #Battery #Low #Voltage #Alarm #Buzzer #Under #Voltage #Protection #Module 12V On-Board Battery Low Voltage Alarm Buzzer Under Voltage Protection Module Features: Sound and light alerting Input transposition protection to avoid chip burning 9V battery: when battery occurs overdischarge(battery voltage is lower than 8V),red indicator light will be on and buzzer will make sound Application: 12V battery voltage testing Specifications: Main Chip: LM358 Size: 3.2x3.2cm/1.26x1.26" Quantity: 1 Pc Note: Please allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! No Retail Package Package Includes: 1 x Protection Module