Store Home New Arrivals Best Sellers Shipping Payment Feedback Store Categroy Store home Controller Raspberry Pi 3D Printers Robot Kits Sensor Servos/Motor&Driver Communication module Power DIY LCD&LEDS Relay Voice&Camera Digital Voltmeter Wholesale&Combination ICs Cables&Connectors PCB board & Breadboard Tools Component Other Industrial Automation Helpful Links Store Newsletter Add my Store to your Favorites and receive my email newsletters about new items and special promotions! General Interest Hot Products title $17.50 title $57.00 title $4.33 title $2.50 title $7.95 title $5.24 title $1.90 DC-DC Step Down Power Module LED Display with 5V USB Charger Brand New Performance and highlights: Voltmeter wide range DC4.5 ~ 40V. 5V/2A output current (Only when the input voltage is 6.5 ~ 40V, it can output 5V). A key ("Output Enable" button) switch USB output, a key ("low-power" button) to enter the ultra-low power. Voltmeter can be artificially calibrated, will never exist voltmeter inaccurate problem! With reverse polarity protection, reverse polarity does not matter. With over-current, over-temperature protection. With USB power indicator. Equipped with terminals to facilitate wiring. High efficiency, low ripple. Size: L58mm W21mm H10mm Weight:13g Instructions for use: Module is connected to power, the voltage can be detected in real time.When you need the phone, IPAD, MP3 and other digital products charge, click the "Output Enable" button,then USB power indicator lights, USB output voltage 5.0V.When you need to turn off the voltmeter, click the "Low Power" button, then enter the ultra-low-power standby mode, USB output corresponding shutdown. Applications: Wide input voltage, for car / battery car / motorcycle used for monitoring battery voltage; measure the voltage needed for a variety of occasions. The output current capability 5.0V/2A, enough to meet a variety of USB devices, voltage is very stable. Voltmeter calibration method: Step 1, Press the "Output Enable" button more than 2 seconds, release, voltmeter flashes, this time into the voltage regulation mode; Step 2, press the "Output Enable" button (normal speed), the voltage value is adding up a unit; Press the "Low Power" button, minus a unit; Due to a unit is less than 0.1V, the minimum voltage display to 0.1V, so you need to continuously press 1-5 times to see the voltmeter change 0.1V, how many times voltmeter change 0.1V by pressing the button, depending on the current display voltage, the higher the voltage, the fewer the number of press. Step 3, press the "Output Enable" button more than 2 seconds, release, to exit the voltage calibration mode.Data is not lost after power failure. SHIPPING PAYMENT RETURNS FEEDBACK ABOUT US 1)All items will be shipped to your paypal address .Please update your latest address when you check out,and please make sure to provide us with correct,precise and detailed shipping address. 2)Most of the items will be shipped via Hongkong Airmail/Singapore Airmail .To US customers,we will send the package via E-packet . 3)All items will be shipped in 1-2 business days (excluding Sat,Sun & Holiday) after payment received and cleared. For the long-time holiday, we'll post the info on our store and reply you automatically via emails. 4)Tax:We will do our best to help you to clear the goods,and the tax depends on each country custom. 5)If you don't receive items over 30 business days,please make sure to contact us before leaving any neutral or negative feedbacks.We'll try our best to help you solve the problem. 6)The product in our store is free shipping. But the shipping method is different based on your order.If your order is more than $50 ,we will send the items to you with tracking number for free.If your order is less than $50,the registered mail fee is on your side. We could also deliver your item via EMS,DHL or Fedex based on your requirement. We Only Accept Paypal on Ebay. For specific requirements, please feel free to contact us. 1)If for some reason you're not satisfied with our service or product quality, please contact us within 3 days after you get the package, you can return the products to us in original package and we will refund your money after we get the package!(Shipping cost is NOT refundable and you should responsible for the return shipping) 2)Although we test each item and they are packed professionally, few item(less than 0.1%) might be damaged during the shipping. You are welcome to contact us within 3 days after you receive your package about replacement. 3)Repair Some items might be broken caused by improper use, we are always happy to offer any helpful repair service. Of course, you can send the broken items back to us and we will help you resolve the situation and charge reasonable repair fees. Feedback is important to all of us participating on the eBay community. We are always working hard for maintain high standards of excellence and strive for 100% customer satisfaction. So your POSITIVE FEEDBACK is very important. Here is an illustration showing how to leave the positive feedback, please follow the following step. Thank you so much. And welcome back to our store again. robothome is a leading company specializes in all kinds of IC products, such as electronic devices and components, development modules, development boards, consumptive materials and so on. robothome has gained thousands upon thousands of registered customers from all over the world. We offer world wide free shipping and have already shipped to more than 150 countries including United Sates, United Kingdom, Canada, Australia, France, Germany, Russia, Italy, New Zealand, Spain, Brazil, Japan, Singapore, Korean, etc. Here is a list of reasons for trusting robothome as your reliable source of IC products or business cooperator: 1.High Quality Products 2.Competitive Price 3.Excellent Research & Development team 4.Excellent shopping platform 5.Excellent Customer Experience 6.Excellent Team Work In robothome, we provide variety of IC products, sell them at the best price, and offer the best service.You will never regret to have robothome as your reliable IC item source, supplier, and business cooperators. Controller Robot Kits Sensor Servos/Motor&Driver Communication Module Power DIY LCD & LEDs inkfrog terapeak i000000 inkFrog Analytics On Jan-02-15 at 01:31:27 PST, seller added the following information:
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