Tesoo's driver monitoring systems uses precise driver monitoring lens, which generally meet the characteristics of wide angle, high relative illumination, high light and other features. It has 1 2.7 inch sensor size. TTL: 15.69-22.11mm. EFL: 3.65-6.50mm. F.NO: 2.0/2.2/2.4/2.6. MBFL: 2.80/5.06/6.24/6.55mm. Get driver monitoring lens quote at Tesoo, your reliable automotive lens manufacturers now!