DC 12V VU Meter Driver Audio Level Indicator / Power Meter 10 LED Level Indicate

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DC 12V VU Meter Driver Audio Level Indicator / Power Meter 10 LED Level Indicate
Product Description
This is 10 Segment LM3915 level indicator board.
Board with an level amplification(use 741 single operational amplifier), there have high and low two group input. it can be used for pre-amplifier output level indication.
Power Supply:
DC 12V 250mA
11PCS 3mm LED lights, 10pcs LED used for level indicating, 1pcs LED used for power indicator. colour assortment: 7pcs Green color, 3pcs Yellow color, 1pcs Red color.
Input sensitivity:
Low input： 150mV to 6V rms (47K)
High input： 1.5V to 60V rms (470K)
Size:
35 x 70mm
Weight:
about 20g
Wiring instructions: There are 4 wires on the board, which are distinguished by color.
Connected to the preamp or microphone amplifier:
Red: Connect the power supply to 12V positive, black: Connect the power supply to 12V negative.
Yellow: Connect the signal line positive, green: Connect the signal line negative (outer layer, shielding layer)
Packing List:
1pcs x LM3915 10 LED Audio Level Indicator(
As your choose
)
Payment
Delivery details
Terms of sales
Returns
Contact us
Payment
●
We only accept payment via
PayPal
.
● All major credit cards are accepted through secure payment processor PayPal.
Delivery details
● Items will be shipped within 1~2 business day after payment received.
● Items are shipped from China by Airmail,
delivery time depends on destination and other factors, normally delivery to USA need
7~18 days
,
reach most of the countries within
10~35 business days
. But to Brazil or Africa, it need
35~65days
.
Terms of sales
● All the items will be tested before shipping. Buy them with the confidence!
●
We maintain hightest buyer ratings
and 100% customer satisfaction,
Positive Feedback will be much appreciated from you.
● Any dissatisfaction or problem, please contact us before you
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or negative
feedback.
Returns
● For defect or wrong items , please you contact us, We will fully refund or send you a new replacement.
● If you not satisfied with our items, pease contact within 3 days, we will fully refund after get your returned goods.
Contact us
● If have any question, Please contact us by ebay message before leaving neutral, negative feedback or open any dispute, we will reply within 24 hours, ensure that help you solve the problem, make you satisfied.
● Business time From
9:30 AM to 21:30 PM(GMT+08)
.
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