Product Description


wireless voltage meters are capable of measuring the voltage off another device, battery, or sensor. This sensor is capable of measuring voltage up to 500 VAC/VDC by connecting the leads on the sensor to the positive and ground terminals of the device being measured.

Examples of interfacing devices include, but are not limited to: Strain Gauge, Pressure Transducer, RTD, Thermistor, or Thermocouple, Piezo Electric sensors, Photoresistor, Industrial Accelerometer, any kind of variable resistor, any kind of sensor that outputs a voltage, etc. If the device being measured is passive, the user must supply their own excitation voltage, as the Itokii sensor is really just a “voltage observer”.


WARNING: Use caution when interfacing to the Itokii Wireless Voltage Meter. Negative voltages, any kind of AC Voltages, or DC Voltage exceeding 600V WILL DAMAGE the electronics of the Itokii Wireless Sensor. Itokii is not responsible for troubleshooting, replacing or reimbursing damages incurred by disregarding this warning.

Product Features

  • Interfaces with devices and power supplies up to 500 VAC/VDC
  • Max sensor input voltage up to 600 volts (will return a max of 500 volts in software)

What does this wireless sensor's data look like in software?

Monnit Wireless Voltage Meters - 500 VAC/VDC - Data View in Software

What's in the box?

  • Wireless Sensor
  • CR2032 - Coin Cell Battery
  • Mounting Hardware
    • Voltage Meter Specifications

      Maximum Rated Input Voltage Up to 600 VAC/VDC (will return a max of 500V in software)
      Full Scale Voltage 0 - 500 VAC/VDC
      Accuracy +/- 3% FS (User calibrated: +/- 1% FS)
      Resolution 11 bit (single ended)
      Conversion Time 228 µs

      Coin Cell Specifications

      Battery Type Replaceable 3.0V Coin Cell Battery
      Dimension 1.775 in x 1.04 in x 0.785 in
      Max Operating Temperature -20°C to +60°C (-4° to +140°F)
      Optimal Battery Operating Temperature (Coin Cell) +10°C to +50°C (+50°F to +122°F)
      Supply Voltage 2.0 - 3.6 V (Single CR2032 Coin Cell Battery)
      Device Range 250 - 300 ft. non-line-of-sight device range*
      Battery Life At 1 hour heartbeat setting, coin cell battery will typically last ~ 1-2 Years. **
      Enclosure Material ABS

      900 MHz Specifications

      Operating Frequency 900 MHz Operating Frequency
      Certifications Complies with Part 15 of the FCC Rules. (FCC ID: ZTL-RFSC1)
      Complies with Industry Canada standards. (IC: 9794A-RFSC1)


        * Actual range may vary depending on environment.
      ** Battery life is determined by sensor reporting frequency and other variables.