1-8s 3.7V-22.2V Lipo Battery Voltage Tester Low Voltage Buzzer Alarm for RC Lipo

Used for 1S-8S lithium battery detection. Warm tip: Set the alarm on the black button between the two speakers! Supports reverse connection protection. Is Electric: No battery. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures.

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