DC 0-300v 300A Shunt Bulit-in Digital Battery Tester Bidirectional Ammeter

Other Function

1. Backlight control Short pre the key to turn on or turn off the backlight. 2. Reset Energy Long pre the key over than 3 seconds can reset the energy. 3. Current Indication Current has direction indication, if there is "-", it means the current is reverse direction, otherwise it is forward direction. Figure 2 Direction Indication 4. Energy Indication Energy has direction indication, if there is "-", it means the energy is reverse direction, otherwise it is forward direction. The energy direction is judged according to the current direction, If the current is positive, the energy will increase, maximum is 999kwh, overflow will be maintained, unle you reset it; if the current is reverse, the energy will decrease, maximum is -999kwh, overflow will be maintained, unle you reset it 5. Working Mode Direct power supply: Direct supply by test voltage, test range is: 8-300V Independent power supply: Working voltage range is: DC5-12V, test range is:0-300V 6. Data Preservation Energy data and backlight state can be saved when power off.

About shping
Shping and Packaging All it will be double checked and well packed before sending.It will be dispatched within 2 business days after buyers pay for the order. It usually takes about 14 to 18 working days for delivering the package to the destination(for e areas,it may take a little longer). 

Special Announcement:
Please fill in the correct and detailed consignee, address and phone number in the order. For fast and correct delivery.If you do not receive order within 30 working days,please feel free to contact Customer Service before leaving Negative and Neutral Feedback, we will do our best to help you resoe the problem.TaxNo, you will only pay what is quoted as total cost at checkout, no more. You are not expected to pay any additional duties or taxes. If you are asked by Customs or our logistic partner to pay duties, please contact our Customer Service .

Your 100% satisfaction is very ant to us
If the product is not on good condition, You can return this product within 14 working days, please contact customer service center before returning.FeedbackYour satisfaction is our first priorityIf you receive the order and it is in good condition,we would be grateful if you would leave us 5 star Positive Feedback for the transaction.