1. Used for 1S-8S lithium battery testing. 2. Voltage detection accuracy: ±0.01V. 3. Display range of group voltage: 0.5V~4.5V 4. Total voltage display range: 0.5V~36V 5.1S test mode voltage range: 3.7V~30V 6. Low voltage buzzer alarm mode: 2S-8S 7. Alarm voltage setting range: OFPacking size: 2.0*3.1*0.6 inches Packing size: 2.0*3.1*0.6 inches Package weight: 0.04