Utilizing the latest NB-IoT wireless transmission technology, VWdot is a datalogger that can measure frequency and thermistor temperature signals of vibrating wire sensors.
The housing is designed with a robust and waterproof enclosure that complies with IP65 standard. VWdot is able to sustain long-term measurement and instant data upload because of its low-power consumption which is merely using a 18650 Li-ion rechargeable battery. It is able to back-up and store more than 1 million of recorded data with its built-in 16 GB SD card. Therefore, VWdot is not only a wireless datalogger but also a stand-alone system where there is no NB-IoT service.
VWdot is a reliable, cost-effective datalogger developed for all kinds of vibrating wire sensors and civil engineering applications.

SKU: VWdot-1 Categories: , , , ,
  • NB-IoT wireless transmission
    Uploading data to the cloud by complying with latest NB-IoT wireless transmission technology for real-time monitoring

  • Low-power consumption
    Powered by one 18650 Li-ion rechargeable battery, it is able to be stand-alone for at least 1.3 years if RSSI <15;
    2 years if RSSI ≧15. (Base on measuring once per hour)

  • MQTT protocol
    Complied with MQTT protocol, it is easy to receive and integrate various data

  • Uploading data to the cloud through easily setup file on SD card

  • Stress : VW Rebar strain gauge
  • Strain : VW Strain gauge
  • Anchor load : VW Load cell
  • Structural cracks : VW Crackmeter
  • Landslide : VW Displacement gauge
  • Water level : VW Water level gauge and VW Piezometer
  • Measurement type:Vibrating wire sensor
  • Channel : 4
  • Measuring range:450~6000
  • Accuracy : ±0.01%@3000 Hz
  • Temperature type:Thermistor (resolution 0.1°C)
  • Network protool:MQTT
  • Storage : 16GB Micro SD card
  • Power supply:18650 Li-ion battery
  • Waterproof :IP65
  • Dimension:100x100x60mm
    (WxLxH) (antenna height not included)
  • TEL:
    886-7-6229700 EXT.252 Mr. Reid Chen
  • E-mail:



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