Description
	
	Product introduction:
	Model: SZG-20B
	Name: non-contact handheld digital tachometer
	Manufacturer: SHANGHAI AUTOMATION INSTRUMENT TACHOMETER AND INSTRUMENT MOTOR CO., LTD.
	Application: SZG-20B non-contact handheld digital tachometer
	I. Introduction
	SZG-20B-type touch handheld digital tachometer is a compact high-precision tachometer, which uses photoelectric conversion principle, can be measured by contact mode the motor speed and line speed and a variety of machinery and equipment, instruments using five LCD digital display, intuitive and accurate, easy to use, small size, easy to carry, wide range.
	SZG-441 Optical handheld digital tachometer, wide type a measuring range, high precision, multi-function, easy to use tachometer, measure the speed, line speed and frequency. And has a counting function and has a maximum value, minimum alarm. Can store the last general non-contact handheld digital tachometer compared to small, compact shape, feel better. The measured object rotation posted a reflective marker, visible light spot alignment tachometer reflective markers can be measured when using.
	Product Specifications
	Measuring range: 10 ~ 25000 r / min (20B) 10 ~ 50000 r / min (441C)
	The basic error: basic error meter limit should not exceed ± 0.05% × Nb
	Display: five LCD digital display
	Sampling time: 1 s
	Operating humidity range: 5 ~ 40 ℃
	Starting torque: less than 4.9 × 10-4N.m
	Power supply: 5 batteries three
	Dimensions: 42.5 × 58 × 166㎜
	23 × 58 × 138㎜
	Weight: 160g
	
	


