DSO138 DIY Digital Oscilloscope Kit SMD Soldered 13803K Version

$24.17 USD

The DSO138 DIY Digital Oscilloscope Kit SMD Soldered 13803K Version uses an ARM Cortex-M3 processor (STM32F103C8) and includes a 2.4-inch color TFT display. It can be used as ARM test...

The DSO138 DIY Digital Oscilloscope Kit SMD Soldered 13803K Version uses an ARM Cortex-M3 processor (STM32F103C8) and includes a 2.4-inch color TFT display. It can be used as ARM test development board. Source code is available for secondary development. Capable students can transform it into a millivoltmeter, data loggers, and more. It is built with auto, regular and one-shot modes, making it easy to capture instantaneous waveform. And it comes with 1KHz/3.3V square wave test signal source. Click and order now!

  • Use an ARM Cortex-M3 processor (STM32F103C8)
  • 2.4-inch color TFT display
  • Can be used as ARM test development board
  • Source code is available for secondary development
  • Capable students can transform it into a millivoltmeter, data loggers, and more
  • Built with auto, regular and one-shot modes
  • Easy to capture instantaneous waveform
  • Rising or falling edge trigger is available
  • Adjustable trigger level position, and with instructions
  • Observable previous trigger waveform (negative delay)
  • Can freeze waveform display at any time (HOLD function)
  • Come with 1Hz /3.3V square wave test signal source
  • Simple and reliable circuits at an affordable price
PCB Dimensions (4.61 x 2.99 x 0.08)" / (11.7 x 7.6 x 0.2)cm (L x W x H)
Screen Size 52 x 40mm
Supply Voltage DC 9V
Maximum Real-time Sampling Rate 1Msps
Accuracy 12Bit
Sampling Buffer Depth 1024 bytes
Analog Bandwidth 0 - 200KHz
Vertical Sensitivity 10mV / Div - 5V / Div (1-2-5 progressive manner)
Input Impedance 1M¦¸
Maximum Input Voltage 50Vpp (1: 1 probe), 400Vpp (10: 1 probe)
Coupling Modes DC / AC / GND
The Horizontal Time Base Range 10¦Ìs / Div - 50s / Div (1-2-5 progressive manner)
Weight 3.70oz / 105g
Package Includes
  • 1 x DSO138 DIY Digital Oscilloscope Kit
  • 1 x Probe
  • 3 x User Manuals

Shipping Methods

We offer shipping service for all items online to most countries of the world. Orders are shipped directly from our warehouse in CN, in plain brown boxes with envelopes.

When in stock, Shipped within 2 working days; Out of stock, Shipped within 3-7 working days. Exculde big holidays and irresistible factors.

We do everything we can to make sure your order is delivered on time.

Kindly remind:

1.Starting from 11-12-2020, the freight rate will be adjusted as follows:

Order amount over $30, free shipping;

Less than $30, charge $2 -$4.5 shipping fee

Conditions Shipping Fee Services Offered
US$30.00 and up Free Tracking
US$0.01–US$29.99 $4.5 Tracking
US$10.00–US$29.99 $2
No Tracking
US$0.00–US$9.99 $2.8
No Tracking

2. If masks and other epidemic prevention supplies are requisitioned by the local government during transportation, no refund will be given. Thank you for your understanding!

 Delivery Time

Ship From Shipping Method

Delivery Time

(working day)

Additional fee
China Warehouse Tracking 20-45 $4.5
No tracking 45-60 $2~$2.8

Tracked Shipping

Note: Delays may occur during this holiday season due to large volume of deliveries. This means it can take an additional 1-4 weeks in the delivery time. If you don't want to risk your orders being delayed, reply to this email within 24 hours of your purchase and let us know that you want to cancel.
You must be aware that delays can occur due to holidays and unforeseen events.

Orders are sent out through regular shipping. If you wish to have them sent with insurance coverage or through express delivery, email us first at service@dinointhebox.com before purchasing. We will give you the quotation.

Out of Stock Items

While we make every effort to keep all listed merchandise in stock, occasionally we are sold out of a certain item. If we are out of stock on an item you have ordered, we will send you an email update as quickly as possible. It will then be your choice to proceed and keep the order in place or cancel it. Items are not charged to your credit card until they are shipped.

We can not cancel your order when it's already shipped.

We use 3rd party couriers to deliver the orders. If you purchase with us you understand that there's risk of parcels getting lost. We only refund orders that have proof that they were not received.

We use 3rd party tracking systems to track orders and if the website states that your order was delivered then we will go by it. Only when the state, city or zip code from your tracking number is not consistent with your inputted shipping details, we will offer the refund. No exceptions.


If the product you received is damaged or incorrect , please contact us in a timely manner with related photos or a specific video. You could request either a full refund or a replacement item once our factory confirm that. 
Customers will only be charged once at most for shipping costs (this includes returns); No-restocking to be charged to the consumers for the return of the product.

All return requests for unwanted items must be made within 14 days of receiving the order. Kindly keep it neat and in its original packaging.
If you need to return an item, simply email us including your order number, reason for return and it would be great if related pictures could be attached. We will then provide you with instructions and a return address to ship your set back. All returned items will be inspected to see if you qualify for a refund.

You should expect to receive your refund within three weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (1 to 3 business days), and the time it takes your bank to process our refund request (3 to 5 business days).

Should you have any further concerns, feel free to email us at service@dinointhebox.com. We're here to help!