Monnit 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 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 Monnit sensor is a “voltage observer”.
Monnit Industrial Sensors come in an IP65, NEMA 4X, CE rated, sealed, and weatherproof enclosure. They are powered by a single, replaceable, Industrial grade 3.6 V battery (included).
An optional solar powered version is also available. The solar powered version includes a Lithium Iron Phosphate rechargeable battery in conjunction with a solar power cell to keep the battery charged and at optimal capacity. If there is no light present at the solar cell, the battery alone could continue to power the sensor for up to 5 years.
WARNING: Use caution when interfacing to the Monnit Wireless Voltage Meter. Negative voltages, any kind of AC Voltages exceeding 600V WILL DAMAGE the electronics of the Monnit Wireless Sensor. Monnit is not responsible for troubleshooting, replacing or reimbursing damages incurred by disregarding this warning.
* Actual range may vary depending on environment.
** Battery life is determined by sensor reporting frequency and other variables.
Voltage Meter Specifications |
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| Calibrated Accuracy with Appropriate Offset | +/- (.5 VACrms + 1.5% of reading) |
| Response Time | 40 ms |
| Resolution | .25 VACrms / .35 VDC/Peak Voltage |
| Lead Wire Length | 2 Wires, 1 ft (12 in), Black (Hot), White (Neutral), 18 AWG (Custom lengths available upon request.) |
| Weight | 4.0 oz. |
| Absolute Maximum Voltage | 600 VAC RMS |
| Supported Operation Modes | VAC RMS (root mean squared) |
| Accuracy | +/- (1 VAC RMS + 3% of reading) |
| Resolution | 25 VAC RMS |
Variation Specifications |
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| UL Rating | UL Listed to UL508-4x specifications (File E194432) |
Industrial Specifications |
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| Dimension | 3.7 in x 2.32 in x 1.38 in |
| Max Operating Temperature | -40° to 85°C (-40° to 185°F) |
| Device Range | 300 - 350 ft. non-line-of-sight device range* |
| Supply Voltage | 2.0 - 3.6 V |
| Battery Type | Replaceable 3.6V, 1800mAH (single AA sized) |
| Optimal Battery Operating Temperature | +10°C to +50°C (+50°F to +122°F) |
| Battery Life | Up to 7 Year Battery Life.** |
| Solar Power Option | 5 VDC Solar Panel 600 mAH Rechargeable Battery (>2000 Charge Cycles - 80% of Initial Capacity) Charging Temperature Range: 0° to 45°C (32° to 113°F) Max Temperature Range: -20° to 60°C (-4° to 140°F) |
| Enclosure Material | IP65, NEMA 4X, CE rated, sealed, weatherproof enclosure |
| UL Rating | UL Listed to UL508-4x specifications (File E194432) |
900 MHz Specifications |
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| 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) |
