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Features:
1.The board is equipped with built-in charging management and charging and discharging protection
2.The calibration value is a six and a half digit count, accurate and reliable. According to usage requirements, it is recommended to recalibrate the calibration conditions every two years. The time and calibration value record card will be pasted on the benchmark
3.With indicator lights, press and hold for 2 seconds before turning on. When turning on, all four indicator lights light up simultaneously
4.This product is a precision voltage reference that can be programmed with four common output voltages: 10.0 V, 7.50 V, 5.00 V, and 2.50 V
5.Voltage output interface with 2mm copper test socket for easy insertion into a pen type multimeter for measuring or calibrating other instruments

Parameters:
Battery: 300mAH benchmark dedicated battery (product does not include batteries)
Battery voltage: 3.7V
Battery model: 14250
Charging and discharging interface: micro USB
Voltage: DC 5V
Output interface: 2mm banana socket

Instructions:
1.The benchmark is not used to fully charge the battery every two months. The board is equipped with built-in charging management and charging and discharging protection. Please note that the battery polarity should not be reversed
2.The output interface is a 2mm banana socket, and there is also an SMA output interface calibration. The HP3458A eight and a half digit multimeter is used for calibration (after sufficient preheating), and the calibration value is six and a half digits for counting, which is accurate and reliable. According to usage requirements, it is recommended to recalibrate the calibration conditions every two years. The time and calibration value record card will be pasted on the benchmark, please keep it properly
3.Press and hold for 2 seconds before turning on the machine. When turning on, all four indicator lights will light up at the same time, and then output a 2.5V reference voltage. After turning on the machine, briefly press the button to switch gears, in order of 2.5V-5V-7.5V-10V. Press and hold for 3 seconds to turn off the machine. After turning off the machine, the voltage indicator light will immediately turn off

Package include:
1X voltage reference board (product does not include batteries)

Payment Policy
Shipping Policy
Returns Policy

Payment Policy

Accept PayPal payment
All hardware is fully tested and guaranteed
Quantity discounts available
Custom configuration and upgrades available
Maintenance plans available

Shipping Policy

By Airmail: Generally, about 2 weeks to UK, USA, AU, CANADA, France, Russia ---- By Express: Generally, about 5-15 working days

to UK, USA, AU.delivery to US, UK, Australia and Canada usually takes 7-14 working days;
Other countries in the region: usually takes 15-30 working days;
-We Can also ship the item through express service like DHL, UPS, if you are ready to pay the extra charge. To know the details please contact us with email.

We ship to eBay address. Please make sure your address in ebay is matched with your shipping address before you pay.

The images are for reference only. Please take the item you get as the standard.

Please indicate your personal requirement, such as colors, packages, value of declaration etc, at paypal's message when you pay to us.

Returns Policy

Return & Refund
Refund or replacement request is available only the requests within 1 week after parcel received & returning the item as the same condition as received.

Please contact us to request a return authorization. Your name, auction number, and reason for return should be included in the email. All items returned must contain all original packaging materials.

Please repack the item carefully. Items returned will be tested and a new replacement will be shipped to the buyer immediately when found defective. In the event that a suitable replacement is not available then a refund will be issued. Shipping, handling and insurance fees are non refundable.

If the item is found non-defective, the item will be sent back to the buyer at buyer's expense. Items returned without RMA number will be refused and returned to the sender. Buyer is responsible for All Return Postage and Shipping Charges. Buyer is responsible for additional shipping costs for items that are returned refused and/or undeliverable. We do not accept any returns without an authorization number on the box or label it is being returned in.

Our working time:
Beijing time :Monday to Friday 9:00 am to 6:30 pm.
We do not work holidays in China.
if you send email to us,In our working hours will be resumed within 48 hours.

If you we are not satisfied with the product or service ,please contact me and don't give us negative or natural feedback,We must give you a satisfactory solution.

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We would like to earn your good feedback and 5 star DSR rating. Your action will help us offer our milk and bread . If we have not given you reason enough for 5-star grades on each DSR then please let us know how we can earn your 5-star rating before submitting yourscores!

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