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Multi-functional Digital USB Safety Tester Stable Operation Reliable Performance Power Bank Voltmeter Ammeter Meter
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It can conveniently measure the output voltage of the USB port and the working current of the device; 2. It is compact and needs no power supply and other ancillary equipment, plug and play; it can also detect whether the output voltage and current of the USB charger meet the standard; it is suitable for factories, laboratories and users.
This electric energy tester adopts a new generation of 4-bit semi-dual integrated circuit with precise bandgap reference source. It has accurate measurement range, high accuracy, stable operation, reliable performance, strong anti-interference ability and high temperature resistance. It can be used to measure the power supply or power consumption of USB interface, mobile phone charger, U disk and other products.
This product can measure the voltage when the USB power supply equipment is empty or loaded, and the voltage and current when the USB terminal equipment is working.
The current and voltage cycle display is simple, convenient and practical.
Scope of Work: Current (0-2.5A) Detection of Cell Phone Charger Voltage to meet DC5V Standard
Scope of work: U = 3-7.5V I = 0-2.5A
Resolution: Voltage 10 mV Current 10 mA
Error: Voltage <+1%Current <+2%
Full range voltage drop: 200 mV (when measuring current)
Working temperature: 0-60??
Product size: 53*35*14mm/2.09*1.38*0.55"
1. 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. Thank you!
2. Please allow 1-3cm measuring deviation due to manual measurement.
Drop Shipping Service.
1.There is no limited stock to fulfill the orders on a daily basis.
1. WORLDWIDE SHIPPING. (Except some countries and APO/FPO)2. Orders processed timely after the payment verification.
3. We only ship to confirmed order addresses. Your order address MUST MATCH your Shipping address.
4. The images shown are not the actual item and are for your reference only.
5. SERVICE TRANSIT TIME is provided by the carrier and excludes weekends and holidays. Transit time may vary, particularly during the holiday season.
6. If you have not received your order after 30 days from payment, please contact us. We will trace your order and get back to you asap. Our goal is customer satisfaction!
7. Delivery :
We maintain high standards of excellence and strive for 100% customer satisfaction! Feedback is very important. We request that you contact us immediately BEFORE you give us neutral or negative feedback, so that we can perform up your satisfaction.
It is impossible to address issues if we do not know about them!
The total estimated time it takes to receive your order is shown below:
You place your order(Processing time)We ship your order(Shipping time)Delivery!Total Estimated Delivery Time
The total delivery time is calculated from the time your order is placed until the time it is delivered to you. Total delivery time is broken down into processing time and shipping time.
Processing time: The time it takes to prepare your item(s) to ship from our warehouse. This includes preparing your items, performing quality checks, and packing for shipment.
Shipping time: The time for your item(s) to travel from our warehouse to your destination.
Economic Airmail - (15-30 business days) Untracked
Registered Airmail - (15-20 business days) Tracked
Direct Line Delivery - (10-15 business days) Tracked
Express Delivery - (7-10 business days) Tracked
(1) The shipping time mentioned above refers to the estimated time of business days that the shipment will take after an order has been shipped.
(2) Business days do not include Saturday/Sunday and any public holidays.
(3) These estimates are based on normal circumstances and are not a guarantee of delivery times.
(4) We are not responsible for the failures or delays in delivery resulting from any force majeure event, such as natural disaster, bad weather, war, customs issues, and any other event beyond our direct control.
(5) Expedited shipping can not be used for PO Box addresses
30 Days No Reason Return
If you are not satisfied with your purchase and the product is still in brand new condition, we can arrange a partial refund, which will cover the price of the item minus the shipping fees. You will be responsible for paying the return shipping fees.
Please contact us for Return Material Authorization within 30 days of the order being received.
Note：Items such as underwear / swimsuits are not covered by this guarantee due to hygiene considerations. If you need help, you can check the Apparel Return Process below, or contact us
90 Days up to the Quality of the Exchange or Refund
If there are quality problems in some categories of products, you can get a refund or exchange up to 90 days. You can contact us to learn if the product is in this category.
Note: Due to its nature and intended use, clothing, shoes, bracelets, decorations, phone and tablet accessories, household gadgets, home decorations, RC toys, home textiles, and other similar items are not included in this warranty period. For other product details please contact us or reference other warranties.
To complete your return, we require a receipt or proof of purchase.
Please do not send your purchase back to the manufacturer.
There are certain situations where only partial refunds are granted (if applicable)
Book with obvious signs of use
CD, DVD, VHS tape, software, video game, cassette tape, or vinyl record that has been opened
Any item not in its original condition, is damaged or missing parts for reasons not due to our error
Any item that is returned more than 30 days after delivery
Refunds (if applicable)
Once your return is received and inspected, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund.
If you are approved, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within a certain amount of days.
Late or missing refunds (if applicable)
If you haven’t received a refund yet, first check your bank account again.
Then contact your credit card company, it may take some time before your refund is officially posted.
Next contact your bank. There is often some processing time before a refund is posted.
If you’ve done all of this and you still have not received your refund yet, please contact us at email@example.com.
Sale items (if applicable)
Only regular priced items may be refunded, unfortunately sale items cannot be refunded.
Exchanges (if applicable)
We only replace items if they are defective or damaged. If you need to exchange it for the same item, send us an email at firstname.lastname@example.org and send your item to us
If the item was marked as a gift when purchased and shipped directly to you, you’ll receive a gift credit for the value of your return. Once the returned item is received, a gift certificate will be mailed to you.
If the item wasn’t marked as a gift when purchased, or the gift giver had the order shipped to themselves to give to you later, we will send a refund to the gift giver and he will find out about your return.
To return your product, you should mail your product to us
You will be responsible for paying for your own shipping costs for returning your item. Shipping costs are non-refundable. If you receive a refund, the cost of return shipping will be deducted from your refund.
Depending on where you live, the time it may take for your exchanged product to reach you, may vary.
If you are shipping an item over $75, you should consider using a trackable shipping service or purchasing shipping insurance. We don’t guarantee that we will receive your returned item.