Sensor yg aktif ketika tangan menyentuh logam di ujung transistor (Base) **Spesifikasi: Chip: LM393 Tegangan kerja: DC 5V Single channel signal output Low level output signal used for human body touch sensor alarm Adjustable sensitivity With fixed bolt hole for easy installation Works with Official for arduino Boards Material: PCB + Brass Ukuran: 43 x 16 x 15 mm Berat: 3 g