SMARTBOX™ Wireless Concrete Resistivity TesterIRELESS (B-520)




  • Used for the measurement and monitoring of electrical resistance and temperature in fresh concrete. The continuous measurements are recorded on SmartBox™ and can be downloaded using the mobile application on Android smartphone/tablet.
  • It can be used to monitor the electrical resistivity and temperature of fresh concrete. This can provide information on:
  • Water content in fresh concrete
  • Prediction of setting
  • Setting time measurement
  • Crack detection in concrete
  • The electrical resistivity of fresh concrete has been shown to provide a good indication on the water content as well as setting and hardening of concrete. It provides an efficien tool for various research studies in these areas.


  • Wireless technology
  • Compact design
  • Simultaneous measurement of electrical resistance and temperature
  • Optimized frequency for fresh concrete
  • Long battery life on a single charge
  • Mobile application for Android smartphone and tablet


Reading Range 1 – 3000 Ω
Measurement Frequency 10 kHz
Accuracy ± 2%
Measurement Time <1 s


Operating temperature -20 ~ 45 °C
Operating humidity 10 ~ 90%
Battery Charger Specification Input: 100-240 Vac (50-60 Hz) Output: 5 Vdc (500 mA)
Dimensions 85 x 55 x 22 mm