*Surface vein finder
- *Type*: Portable infrared device to visualize subcutaneous veins
- *Tech*: Near-infrared light + DLP/laser projection. Hb absorbs IR, veins show dark
- *Wavelength*: 740-850nm NIR LEDs
- *Projection*: Real-time vein map on skin surface. Depth 0-10mm
- *Accuracy*: Best for veins 0.5-10mm diameter
- *Modes*: Basic, inverse, depth, fine mode for pediatrics
- *Display*: Direct projection or 3.5-5" LCD screen
- *Working distance*: 20-40cm from skin
- *Battery*: Rechargeable Li-ion. 2-5 hrs use
- *Weight*: 200-500g handheld
- *Features*: Brightness adjust, image freeze, color select, stand/desk