Before we can ship your order, we prepare your products, do strict quality-control tests and carefully package the items. The time it takes to prepare your items for shipping is separate from the delivery time. It usually takes 1-3 business days to ship out .
You can choose the preferred shipping method on the cart page during the checkout process. We offers 3 international shipping methods:
1. Airmail – Free untracked economy shipping via national postal services (HK Post, Singapore Post, China Post, PostNL, Swiss Post, Sweden Post, USPS, Royal Mail e.t.c.)
2. Airmail Registered – Tracked shipping via national postal services (HK Post, Singapore Post, China Post, PostNL, Swiss Post, Sweden Post, USPS, Royal Mail e.t.c.)
3. Expedited Shipping – Express shipping with courier delivery (DHL, UPS, FedEx, TNT)
Airmail and Airmail Registered
Estimated Delivery Time
United States, Canada
7-25 business days
Australia, New Zealand, Singapore, United Arab Emirates
10-25 business days
United Kingdom, France, Spain, Germany, Netherlands, Japan, Belgium, Denmark, Finland, Ireland, Norway, Portugal, Sweden, Switzerland
10-25 business days
Italy, Brazil, Russia, South Africa
10-45 business days
10-35 business days
3-10 business days to Worldwide
Note: If you choose an expedited shipping, please remember to leave a valid contact number, this is required for expedited shipping’s courier delivery.
If you are not completely satisfied with your purchase for any reason, you may return it to us for a full refund within 15 days from delivery date. All returned items must be in new and unused condition, with all original tags and labels attached.
To return an item, please email our customer service at firstname.lastname@example.org to obtain a Return Merchandise Authorization (RMA) number. After receiving a RMA number, place the item securely in its original packaging, and mail your return to the following address:
HaGiborim St 8
Please note, you will be responsible for the return shipping charges. We strongly recommend that you use a trackable method to mail your return.
All customers should contact us and obtain Return Merchandise Authorization (RMA) number before sending anything to us. We will not be responsible for returned item(s) without notifying us in advance.
After receiving your return and inspecting the condition of your item, we will process your refund to the credit / debit card or PayPal account which was used to place the original order.
Please allow at least seven (7) days from the receipt of your item to process your refund. Refunds may take 1-2 billing cycles to appear on your credit card statement, depending on your credit card company. We will notify you by email when your refund has been processed.
If an item is found damaged or defective on receipt, we kindly ask you to contact us within 15 days from the delivery date to arrange a refund or exchange without physical return of the item.
Please provide us with following:
1. Photos of the front and back sides of the packaging box; 2. A photo, video or screenshot of the defective item or the defective part of the parcel.
Our customer service team will communicate with you to arrange a refund or reshipment without physical return of the item.
Warranty & Repair service
If any of the items you have purchased from us is found defective within 1 year from receipt, you are entitled to a repair under warranty. Please kindly provide us with evidence photos or videos of the defective item. After providing such information to our Customer Service team and the problem is acknowledged, you can send the items back to us for a repair.
Note: Please be aware, we do not cover the cost of the returns fees in warranty & repair service.
If you want to cancel an order within 24 hours from confirmation of the payment, you will be entitled to a full refund. It is still possible to cancel an order after 24 hours, provided that it has not yet been shipped. If an order has been shipped, it’s impossible for us to cancel or modify it anymore. If you still want a refund, you required to return the item on it’s arrival.
If you have any questions concerning our return policy, please contact us at:
WZ-DM20 is a 20A Multi-function Voltmeter Ammeter. It can measure currents up to 20A at most without any shunt. It can measure current voltage, current, power, energy.
1.Voltage measurement2.Current measurement3.Power measurement4.Energy measurement5.High voltage alarm function6.Low voltage alarm function7.Energy overrange alarm function8.Multiple parameters are displayed simultaneous9.Support parameter memory function10.Support power saving mode11.Current range can be set
1.Set Backlight:1.1.Press button to turn ON or OFF backlight. Turning off the backlight can reduce its power consumption.2.Clear Energy Statistics:2.1.It is used to clear energy statistics and restart statistics.2.2.Step 1:Keep press button until ‘CLrE’ is displayed in the power display area.2.3.Step 2:Release button and enter into Clear Energy Statistics interface and the energy statistics value will keep flashing.2.4.Step 3:Keep press button until ‘PASS’ is displayed in the power display area.It means the Clear Energy Statistics is cleared successfully.2.5.Release button and return to normally display interface.2.6.The energy statistical value will not be cleared if there is no operation within 5 seconds after Step2.3.Set Voltage Alarm Value:3.1.It is used to set High Voltage Alarm Function and Low Voltage Alarm Function.3.2.Step 1: Keep press button until ‘USET’ is displayed in the power display area.3.3.Step 2: Release button and enter into Set Voltage Alarm Value interface.3.4.Screen display the High Voltage Alarm Value ‘XX.X H’ in the voltage display area in unit voltage.The highest bit will keep flashing.3.5.Screen display the Low Voltage Alarm Value ‘XX.X L’ in the current display area in unit voltage.3.6.Step 3: Press button to set value for the flashing bit. The value just be increase for 0 to 9 in turns.But can not decrease.3.7.Step 4: Automatically switch to the next bit and flashing without any operation within 3 second after Step3.3.8.Step 5: Press button to set value for the flashing bit. The value just be increase for 0 to 9 in turns.But can not decrease.3.9.Step 6: Set the 6-bit parameter value in the same steps for ‘XX.X H’and ‘XX.X L’ .3.10.Step 7: Keep press button until ‘PASS’ is displayed in the power display area.It means the Set Voltage Alarm Value is set successfully.3.11.Release button and return to normally display interface.4.Set Display Language:4.1.WZ-DM20 supports display English and Chinese.It is used to set display language.The default language is English.4.2.Step 1:Keep press button until ‘LANG’ is displayed in the power display area and ‘UAGE’ is displayed in the energy display area.4.3.Step 2: Release button and enter into Set Display Language interface.4.4.Screen display EN or CN in the voltage display area.4.5.EN means that its display language is English.4.6.CN means that its display language is Chinese.4.7.Step 3: Press button to switch EN or CN.4.8.Step 4: Keep press button until ‘PASS’ is displayed in the power display area.It means the Set Display Language is set successfully.4.9.Release button and return to normally display interface.4.10.The set value will not be saved if there is no operation within 5 seconds after Step3.Note:
1.WZ-DM20 can connect to load directly without a shunt.2.The wires must be correctly connected before turning on the power,otherwise the WZ-DM20 will be damaged.3.The shunt must be connected correctly.4.It is not waterproof and cannot be used outdoors.5.Please read use manual and description before use.
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