VSEW mk4 8g
574.00 $
Pair the VSEW mk4 8g with our Cloud Data Access for real-time remote vibration monitoring. Explore Cloud bundle →
The Vibration Meter Data Logger – VSEW_mk4 – 8g is a smart vibration datalogger in the VSE series. It records accelerations, vibrations, velocities and inclinations. It includes a 3-axis MEMS accelerometer, an accurate date/time clock and a non-volatile 128 Mb recording memory.
Depending on the settings, it can record acceleration or velocity signals and/or RMS levels for months. Its very small size (65 g) allows it to be attached to, or embedded within, the monitored equipment.
New in the VSEW mk4
- Virtual COM port interface for custom application integration (see VSEW_mk4 Com Protocol)
- Preset filters support DIN4150-2, DIN4150-3 and ISO 2631-2 standards
- WiFi™ auto-fallback to any open access point ("W" model only)
- Email alerts to multiple addresses ("W" model only)
VSEW mk4 8g Applications
- Building-health monitoring on construction sites
- Preset filters support DIN4150-2, DIN4150-3 and ISO 2631-2 standards
- Long-term seismic monitoring
- Long-term inclination monitoring
- Continuous measurement of acceleration signals, velocity signals, statistics (peaks & average) and RMS levels
- Continuous monitoring of machinery wear
The Vibration Meter Data Logger – VSEW_mk4 – 8g is a new model in the VSE series of smart vibration dataloggers. It can record accelerations, vibrations, velocities and inclinations. It includes a 3-axis MEMS accelerometer, an accurate date/time clock and a non-volatile 128 Mb recording memory. Depending on the settings it can record acceleration or velocity signals and/or RMS levels for months. Its very small size allows it to be attached to, or embedded within, the monitored equipment.
The Vibration Meter Data Logger – VSEW_mk4 – 8g model is an evolution of the VSEW_mk2– 8g model.
The VSEW_mk4 has the following new features:
- Virtual COM port interface that allows configuration and measurements to be read by a custom application (see VSEW_mk4_Com_Protocol.pdf)
- Added filters and settings to support the DIN4150-2 and ISO2631-2 standards directly.
- WiFi™ connection can use any open access point if the specified access point is not working (“W” model only).
- Email alerts can now be sent to multiple addresses (“W” model only).
VSEW_mk4 Applications
- Building-health monitoring on construction sites.
- Compliance to DIN4150-2 and ISO2631-2.
- Long-term seismic monitoring.
- Long-term inclination monitoring.
- Long-term measurement and recording of acceleration signals, velocity signals, signal statistics (peaks and average) and RMS levels.
- Continuous monitoring of machinery wear.
In stock (can be backordered)
Ultra-Low Noise Floor
200 μg RMS acceleration noise, 35 μm/s RMS velocity noise (1Hz to 100Hz bandwidth). Detects the finest vibrations for building health and seismic monitoring applications.
DIN4150-2 & ISO2631-2 Ready
Built-in digital filters and settings for direct Support to DIN4150-2 and ISO2631-2 vibration standards. No post-processing needed.
3-Axis MEMS Accelerometer
Measures acceleration, velocity, vibration levels and inclinations on all three axes. 100% duty rate — zero missed samples.
IP57 Weatherproof & 65 g
Integrally potted ABS enclosure protected against dust and temporary immersion. Small enough to attach to or embed within equipment.
Product Description
The Vibration Meter Data Logger – VSEW_mk4 – 8g is a new model in the VSE series of smart vibration dataloggers. It can record accelerations, vibrations, velocities and inclinations. It includes a 3-axis MEMS accelerometer, an accurate date/time clock and a non-volatile 128 Mb recording memory.
Depending on the settings it can record acceleration or velocity signals and/or RMS levels for months. Its very small size allows it to be attached to, or embedded within, the monitored equipment.
VSEW mk4 8g Applications
- Building-health monitoring on construction sites
- Building vibration monitoring (support for DIN4150-2, DIN4150-3 or ISO2631-2)
- Long-term seismic monitoring
- Long-term inclination monitoring
- Long-term measurement and recording of acceleration signals, velocity signals, signal statistics (peaks and average) and RMS levels
- Continuous monitoring of machinery wear
The VSEW mk4 includes the following features
- Virtual COM port interface that allows configuration and measurements to be read by a custom application (see VSEW_mk4 Com Protocol) NEW
- Added filters and settings to support DIN4150-2, DIN4150-3, ISO2631-2 and SBR-A standards directlyNEW
- 3-Axis integral MEMS accelerometer
- Measures and records:
- Raw acceleration or velocity signals
- Acceleration or velocity statistics
- Vibration or velocity levels
- Inclinations
- All-digital design
- Integrated oscilloscope function — view vibration or velocity signals in real time
- Observe recorded data while the recording is ongoing
- Works standalone, or USB / WiFi connected for setup and data transfer to PC
- Long-life internal rechargeable battery (USB-rechargeable)
- Self-calibrated using the earth's gravity as a reference
- 100% duty rate — observes and records every sample (no missed samples)
- Editable individual custom ID for easier instrument management
- Completely sealed weatherproof enclosure (IP57)
Specifications
| Sensor | |
| Number of Axes | 3 |
|---|---|
| Acceleration Sensor | MEMS Digital 3-axis |
| Dynamic Range | ±8 g |
| Bandwidth High Limit | Adjustable up to 2 kHz (@ 4 kHz Sampling Rate) |
| Bandwidth Low Limit | DC (High-Pass Filter Bypass), Adjustable from 10 mHz to Fs/2 (High-Pass Filter On) |
| Noise Performance | |
| Accel. Noise X-Y Axes (Typical) | 110 μg @ Fs=125 Hz Sampling Rate 750 μg @ Fs=4 kHz Sampling Rate |
| Accel. Noise Z Axis (Typical) | 110 μg @ Fs=125 Hz Sampling Rate 750 μg @ Fs=4 kHz Sampling Rate |
| Velocity Noise X-Y Axes (Typical) | 25 μm/s RMS @ 1 Hz High-Pass Cutoff 8 μm/s RMS @ 10 Hz High-Pass Cutoff |
| Velocity Noise Z Axis (Typical) | 30 μm/s RMS @ 1 Hz High-Pass Cutoff 10 μm/s RMS @ 10 Hz High-Pass Cutoff |
| Inclination Angle Noise | 1×10⁻³° (measured using acceleration average, log interval 1s, Z axis vertical) |
| Inclination Temp. Stability | 0.2° over the temperature range −20 °C to 60 °C |
| Connectivity | |
| Connectivity | USB (Virtual COM port interface with open protocol) WiFi ("W" Model only) |
| Radio Standard | IEEE 802.11 b/g/n |
| Radio Certification | FCC, IC, Japan, Korea, CE |
| Measurements & Alarms | |
| Measurements | Raw Acceleration (g or m/s²), Raw Velocity (m/s), Min/Max/Avg Acceleration (g or m/s²), Min/Max/Avg Velocity (m/s), Inclinations, Min/Max/Avg RMS Vibration level (linear or dB), Min/Max/Avg RMS Velocity level (linear or dB) |
| Alarm Emails | Acceleration Signal Threshold (X, Y, Z), Velocity Signal Threshold (X, Y, Z), RMS Acceleration Level Threshold (X, Y, Z), RMS Velocity Level Threshold (X, Y, Z), Battery |
| Spectral Display | 3-Axes 1024-point Power Spectrum — dB or Lin Scale |
| Recording | |
| Duty Rate | 100% — No Missed Samples |
| Sampling Clock Accuracy | 1% |
| Date-Time Clock Accuracy | 30 ppm |
| Calibration | Self-Calibration using the earth's gravity as a reference |
| Recording Memory | Non-Volatile Flash Memory — 128 Mb |
| Recording Capacity Examples | 17 min single-axis raw signals @ 4 kHz 5 days 3-axes full-statistics @ 1 s intervals 10 months 3-axes full-statistics @ 1 min intervals |
| Recording/Erasure Cycles | > 100,000 |
| Data Retention | > 20 Years |
| Modes of Operation | |
| Modes | Idle (Micro-Power), USB-Connected (Active), Recording (Stand-alone), Auto-Rec — Idle when no activity / Recording while activity is present |
| Power | |
| Battery Type | Integral Li-Poly — USB-Rechargeable |
| Recharge Time | 2 h 30 (Typical) |
| Battery Autonomy | Up to 1 year in Idle 16 to 125 days while recording, depending on settings |
| Battery Life | > 300 Charge/Discharge Cycles |
| Physical | |
| Temperature Range | −20 °C to 60 °C (−4 °F to 140 °F) |
| Dimensions | 7.62 × 3.94 × 2.06 cm (3″ × 1.55″ × 0.81″) |
| Weight | 65 g |
| Construction | Integrally Potted Weather-Proof ABS Enclosure |
| IP Rating | IP57 — Protected against dust and temporary immersion |
Talk to an expert
Which Model to Choose?
|
VSEW mk4 8g
This product |
VSEW mk4 40g | VSEW mk4 200g | VS E-16g | mk4 MQTT | |
|---|---|---|---|---|---|
| Product Page | — | View → | View → | View → | View → |
| Sensor & Range | |||||
| Dynamic Range | ±8 g | ±40 g | ±200 g | ±16 g | Depends on model |
| Memory | 128 Mb | 128 Mb | 128 Mb | 128 Mb | 128 Mb |
| Measures Velocity | ✓ | ✓ | ✓ | — | ✓ |
| Connectivity & Alerts | |||||
| Open USB Protocol (VCP) | ✓ | ✓ | ✓ | — | ✓ |
| WiFi Reporting | ✓ | ✓ | ✓ | — | ✓ |
| Email Alarms | ✓ | ✓ | ✓ | — | — |
| Visual Alarms | — | — | — | ✓ | — |
| Features | |||||
| Timer Start | ✓ | ✓ | ✓ | ✓ | ✓ |
| High-Precision Trigger (80 ms Pretrig) | ✓ | ✓ | ✓ | ✓ | ✓ |
| Time Zone Aware | ✓ | ✓ | ✓ | ✓ | ✓ |
| Settings Retained Through Reset | ✓ | ✓ | ✓ | ✓ | ✓ |
| Target Application | |||||
| Impacts | — | — | ✓ | — | DoM |
| Shipment Monitoring | — | ✓ | ✓ | ✓ | DoM |
| Inclinometer | ✓ | — | — | ✓ | DoM |
| Low-Amplitude Vibrations | ✓ | — | — | — | DoM |
| Ground Vibrations / Construction | ✓ | — | — | — | DoM |
| DIN4150-2 | ✓ | — | — | — | DoM |
| Machine Monitoring | ✓ | ✓ | — | ✓ | DoM |
| Raw-Signal Recording | ✓ | ✓ | ✓ | ✓ | ✓ |
| Noise Floor | |||||
| X-Y Axes | 110 μg @ Fs=125 Hz 750 μg @ Fs=4 kHz Bruit d'accélération de 200 μg RMS @ Fs=4 kHz (limité à la bande 1 Hz-100 Hz) |
800 μg @ Fs=125 Hz 4 mg @ Fs=4 kHz |
36 mg @ Fs=100 Hz 160 mg @ Fs=3,2 kHz |
3,6 mg @ Fs=100 Hz 16 mg @ Fs=3,2 kHz |
DoM |
| Z Axis | 110 μg @ Fs=125 Hz 750 μg @ Fs=4 kHz Bruit d'accélération de 200 μg RMS @ Fs=4 kHz (limité à la bande 1 Hz-100 Hz) |
800 μg @ Fs=125 Hz 4 mg @ Fs=4 kHz |
36 mg @ Fs=100 Hz 160 mg @ Fs=3,2 kHz |
3,6 mg @ Fs=100 Hz 16 mg @ Fs=3,2 kHz |
DoM |
Construction & Building Health
Monitor ground-borne vibrations from pile driving, excavation, blasting and heavy machinery near sensitive structures. The built-in preset filters support DIN4150-2, DIN4150-3 and ISO 2631-2 standards reporting without post-processing.
Seismic & Structural Monitoring
Deploy for long-term seismic recording and structural inclination monitoring. The ultra-low noise floor (200 μg RMS) detects micro-vibrations and subtle shifts that coarser sensors miss entirely.
Machine Condition Monitoring
Attach to rotating equipment, motors, HVAC systems or industrial machinery to track wear over time. The 100% duty rate and velocity measurement capability give you complete vibration profiles for predictive maintenance.
Remote & Cloud Monitoring
Pair with the 24/7 Cloud Data Access for real-time wireless monitoring. WiFi email alerts notify you instantly when vibration thresholds are exceeded at remote sites.
Sorry, no reviews match your current selections

Very responsive and kept me well informed of my order status.
Great bang for the buck