... pyroelectric infrared sensor detects infrared radiation from human, the polarization of pyroelectric material changes with temperature. Dual compensated ... appliances( air-conditioner, fan)4. light switch control, lamp, LED tube5.intellectualized toy, etc.6.other human detect ... experience, and 50% of the market share. Senba industrial parkSenba Advanced Equipment LED lights used PIR D203B, wide detect ...