Hangzhou Huaxin is the only one producing the smallest lens diameter of 4mm endoscope manufacturers of industrial electronics. 
 WS-PVB series of portable electronic endoscope is the second generation of high-quality optical microscope after the detection equipment, it is electronic, optical, precision machinery technology combination of new products. Probe the electronic camera with ultra portable design, make the device to become the world's most advanced endoscopy, one of its small size, light weight, easy to carry, easy to detect other devices can not enter the narrow curved space and have high-definition images, cost performance. Can be applied to mechanical, chemical, aviation, security, police and other applications in the field. 

 Technical parameters 
 Image Sensor: 1 / 10 "image system 
 Probe diameter: 4 - 6mm 
 Working length: 1M, 2M, 3M --- 10M option 
 Head Size: Φ4.2mmX12.5mm 
 Probe direction: the direction of bending 2 
 Maximum bending angle: 90 ° ~ 120 ° 
 Light: halogen or high-brightness LED 
 White Balance: Auto / Manual 
 Video output: AV / S-Video, USB2.0 (optional) 
 Power: Portable battery or rechargeable battery take-out 
 Display: 5.2 "color TFT display 
 Lens: self-focusing lens 
 TV Line: 480 line 
 Video Signal System: PAL / NTSC 
 Endoscopic Total Weight: 12kg 
 Image recording: recording, storage (Alternative) 

 Product applications 
 1, with water and oil properties, can be used for a variety of internal pipe (pipe, tubing, pipe), cylinder inspection 
 2, a variety of mechanical equipment, engine, or foreign objects inside the machine check 
 3, means of transport, cars, planes, ships and other tests 
 4, all security and space limitations, but can not enter the corner of the site inspection 
 5, dangerous environment ---- hazardous gases, liquids under ambient conditions to check 
 6, police, public safety, counter-terrorism, customs check private search and rescue, and so on.