可直接连接微处理器的 ADC 端口，实现省空间，低成本。
This pyroelectric sensor can be connected directly to ADC terminal of MPU, which
helps you to achieve space-saving and cost-saving.
SW-IVC 系列（低成本型） SW-IVC Series (Low Cost Type)
SW-ULP 系列（低功耗型）SW-ULP Series (Small Power Consumption Type)
