Vibrometar olovka, Insize Specifications: Measured parameter: speed Measuring range: 0.1~199.9mm/s Frequency: 10Hz~1KHz Accuracy: ±(5%±2)mm/s Operating temperature: 0°C~40°C Operating humidity: <85% Power supply: 2xLR44 batteries (for 10 hours working) Dimension: 150x22x18 mm Weight: 55g Standard delivery: Main unit (1pc), LR44 battery (2pcs) Features: Measure vibration of motors, fans, pumps, compressors and machine tools to prevent mechanical failure Small size, light weight, low energy consumption, easy operation and easy to carry One key control Automatic power off