model		LV-21A
kinds		NPN output
Parent/child		base unit
control output		NPN open collector x 2ch DC40V or less Max. 100 mA Residual voltage 1.0V or less
response speed		FINE: 80µs, TURBO: 500µs, SUPER: 4ms
Interference prevention number		FINE: 0 units, TURBO: 2 units, SUPER: 4 units
protection circuit		Reverse connection protection, overcurrent protection, surge absorption
Addition of cordless handsets		Up to 7 units (8 units in total)
Rating	Power-supply voltage	DC 12 – 24 V, ripple (PP) 10 % or less
	power consumption	1.5 W or less (125 mA or less at 12 V, 62.5 mA or less at 24 V)
Environmental resistance	Ambient temperature	-10 to +55°C (non-freezing) ^*1
	Ambient humidity	35 to 85 % RH (non-condensing)
Material	body	Polycarbonate
	Case
mass		about 120g

Bộ khuếch đại sensor Keyence LV-21A