A digital or traditional optical microscope can help engineers check on their high-speed probing activities much more easily. It will assure the probe tips will touch on the right contact(s), with correct contact angle and right amount of force. We use both digital and optical microscopes in our own lab. The information in this page is to help you choose a microscope best suits you.

Optical Microscopes

Traditional optical microscopes offer a better visibility on probing small circuit. It offers several benefits over digital microscopes and at the same time it has some serious limitations: 


  • Longer working distance
  • Choices on eye-pieces
  • Option to add digital camera
  • More steady in use
  • You may consider this boom stand microscope for your lab. Remember to consider ring LED light for illuminating the circuit.


  • Heavy, not very portable
  • Much larger than a digital microscope
  • Limit on smaller circuit such as die, chip-scale-package, smaller PCB

Digital Microscopes

  • Connects to the USB port of a PC, and displays the result on the screen.
  • Small size, more portable
  • Easy to support multiple microscopes
  • Can shoot video and take still pictures for future review and demo
  • Considerations: Resolution, build quality, software, long working distance, size, price


PacketMicro is an authorized reseller of Dino-Lite microscopes and accessories.

Dino-Lite long working distance (LWD) digital microscopes sold by PacketMicro:

  • AM4113ZTL: 1.3 MP resolution, LWD with polarizer, 10x~90x. Price: $549
  • AF4515ZTL: 1.3 MP resolution, LWD with Polarizer, 5x~140x, and AMR (Automatic Magnification Reading). Price: $799
  • AM5216ZTL: 1280x720 resolution, LWD with polarizer, 5x~140x. Connects to monitor directly through D-Sub/VGA interface. No PC is needed. Price: $699.
  • AM7115MZTL: 5 MP resolution, LWD in metal case with polarizer, 10x~140x. Price: $1069. Contact us.
  • Please contact us for other Dino-Lite microscopes or accessories.
  • For information about Dino-Lite Digital Microscopes, please visit Dino-Lite FAQ
  • For features about Dino-Lite Digital Microscopes, please visit Dino-Lite Features

To select the right digital microscope for your application, please check the Digital Microscope Selection Guide in the FAQ

FP40 Flex Positioner

UH50 Flex Holder

FP40 Flex Positioner with HDM1 adapter is designed specifically for holding Dino-Lite digital microscope at a very competitive price. It is built with magnetic lockable steel base and steel flex arm to hold digital microscopes. FP40 is for engineers who need to put the microscope in a wide range of height and to stay steady during the whole probing process.

FP40 Specifications

  • Articulated arm: 3 links and 3 joints controlled by a single thumb knob
  • Arm Length: 300 mm/12 in
  • Base: 65 mm L x 60 mm H x 70 mm W (2.5” L x 2.3” H x 2.8” W)
  • Weight: 1.3 kg/3.2 lbs.
  • Part Number: FP40-HDM1, FP40-UA16
  • Availability: Now

Metal Base Plate

  • Size: 120 mm L x 90 mm H x 10 mm W (4” L x 2.2” H x 2” W)
  • Weight: 0.8 kg/1.75 lbs.


FP40-HDM1 Price: $400 each


  • Multiple-arm configuration
  • Articulated arm controlled by a single thumb knob
  • Various changeable adapters
  • Long-reach arm (300 mm / 12”)
  • Base with on-off magnetic switch and base plate with rubber bottom for stability
  • View Flex FP40 Positioner datasheet.


Microscope Demonstrations

Microscope Demonstration

PCB probing using Digital Microscope

Microscope Demonstration

PCB probing using Optical Microscopes

Dino-Lite Microscope demo video

About PacketMicro

PacketMicro, based in Silicon Valley, provides a wide range of gigahertz probes, probe positioners, bench-top probe stations, and digital microscopes. In addition, PacketMicro offers wireless modules and engineering services in Bluetooth Smart, ZigBee, and wireless sensor networks. PacketMicro customers include many Fortune 100 companies.

Get in touch

PacketMicro, Inc.
2312 Walsh Avenue, Suite A
Santa Clara, CA 95051

+1 408 675 3900 (Main)

+1 408 580 0059