| Measuring units | Peak value of vibration speed Peak value of vibration acceleration |
| Supported standards | DIN 4150-3; BS 7385; SN 640312A |
| Vibration sensor | triaxial piezo-electric acceleration sensor |
| Display range (peak) acceleration | 0.001 ... 15 m/s² |
| Display range (peak) speed | 0.01 ... 2,400 mm/s at 1 Hz |
| 0.01 ... 30 mm/s at 80 Hz (frequency-dependend) |
|
| Accuracy (reference value: 16 Hz) | ±3 %, ±2 digits, 100 Hz low pass |
| ±3 %, ±2 digits, 398 Hz low pass | |
| Display | LCD, b&w, 128 x 64 pixel, backlight 3 peak values (x/y/z direction) or vector sum, main frequency, 50-lines FFT spectrum, battery status, date and time |
| Alarm | warning and alarm LEDs next to the display relay output (chargeover contact, max. 100V DC / 2 A) |
| GSM modem | Quad band (850, 900, 1800, 1900 MHz) (optional) |
| SMS alarm function | SMS notification when alarm is triggered SMS contains x/y/z readings, frequency, date, and device name |
| Additional GSM functions | Phone call with headset (optional VM40-HS adaptor) (optional) |
| Memory | Built-in micro-SD card Max. 100,000 readings (x/y/z, frequency, date, time, device name) |
| Analogue digital convertor | 24 bit, sigma-delta |
| USB interface | USB 2.0, CDC mode, via VM2x-USB cable |
| Battery | NiMH, 4.8 V, charging time: 10 h No battery power consumption when connected via USB (e.g. to an USB powerbank or a USB mains / AC adaptor) |
| Battery service life | 5 ... 15 days, depending on the temperature and duty cycle |
| Languages | German, English |
| Temperature range | -20°C ... 60°C / -4°F ... 140°F |
| Protection class | IP 64 |
| Dimensions | 150 mm x 140 mm x 80 mm / 5.9 in x 5.5 in x 3.1 in |
| Weight | 2 kg / 4.4 lbs |
