Pocket vibrometer, [Brand] vibrometer, Zhengzhou vibrometer provided by 星枫 instruments. We are Nanchang Xing Feng Instrument Co., Ltd. (www.xingfengyiqi.com) located: Nanchang, Jiangxi professional: rangefinder, coating thickness gauge, ultrasonic thickness gauge, hardness tester, vibrometer Model: VM- 6310 Product Name: Vibration meter VM-6310 Price: 0 Brand: Domestic Product Category: Physical properties testing equipment bandpass filter speed 10Hz-1KHz 0.1-200mm / s Accuracy: <5% metric conversion to keep the maximum automatic Off with RS232C interface output AC 2.0V power supply: 4 AA batteries Operating environment: Temperature :0-40 ℃ Humidity :10-90% RH Dimensions: 124x62x30mm Product Model: UT315 Product Name: vibrometer UT315 Price: 0 Brand: Youlide Category: physical properties testing equipment specifications Basic Functions Range Best Accuracy Model UT315 acceleration (frequency) 0.1 ~ 199.9m/s2 (10Hz ~ 10KHz) ± (5% +2) speed (frequency) 0.01 ~ 19.99cm / s (10Hz ~ 1KHz) ± (5% +2) displacement (frequency) 0.001 ~ 1.999mm (10Hz ~ 500Hz) ± (5% +2) vibrometer brand