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This OV7725 USB CMOS board camera module is ideal for many applications such as security systems, portable video systems, video phones, industrial machine monitoring and toys. It uses high quality OmniVision image sensors. Although this camera is not designed as a consumer item, it remains a popular choice for equipment manufacturers, experimenters and hobbyists.

Hermetically sealed metal cap photoresistor are a special photoresistor set in an airtight environment with a special metal and glass window. The closed environment is filled with nitrogen, which completely isolates the photoresistor from the outside world, thus effectively extending its life cycle. It is broadly applied in high/low temperature, high humidity, acid, alkali and ultraviolet environments.