The descriptions of different chips are as follows:
HQ:
Resolution: 520TVL
Pixels:
PAL: 752 x 582
NTSC: 768 x 494
Current: 500mA
STH:
Image sensor: 1/3-inch Sony
Resolution: 480TVL
Pixels:
PAL: 752 x 582
NTSC: 768 x 494
Current: 500mA
STL:
Image sensor: 1/3-inch Sony
Resolution: 420TVL
Pixels:
PAL: 500 x 582
NTSC: 510 x 492
Current: 500mA
AGC: on/off
Gamma characteristic: above 0.45
White balance: automatic
Backlight compensation: on/off
S/N ratio: greater than 48dB
Power supply: 12V DC
Payment Details:
Payment Terms:
T/T or Negotiable Payment/Cash in Advance
Product Certifications:
Certificate Standard:
CE
Certificate Number:
E0607134E
Issue Date:
01-Aug-2006
Issued By:
Shenzhen Emtek Co., Ltd.
Certificate Standard:
FCC
Certificate Number:
E0607134F
Issue Date:
01-Aug-2006
Issued By:
Shenzhen Emtek Co., Ltd.
Note: Not all certifying agents offer online lookup, and some have a lag time for posting new certificates. If you are unable to find a certificate online, contact the certification agency or supplier for further verification.