ALTA Industrial wireless voltage meters are capable of measuring the voltage off another device, battery, or sensor. This sensor is capable of measuring voltage up to 5 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 Monnit sensor is really just a “voltage observer”. Cannot be used for AC voltage measurement.
WARNING: Use caution when interfacing to the Monnit Wireless Voltage Meter.Negative voltages, any kind of AC Voltages, or DC Voltage exceeding 10V 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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| Voltage Range | 0 – 5 Volts DC |
| Resolution | ~3 mV |
| Accuracy | +/- 3.0% FS |
| User Calibrated Accuracy | +/- 0.5% FS |
| Open Circuit Voltage | ~0.00 Volts |
| Maximum Rated Input Voltage | 10 Volts |
| Lead Wire Length | 2 Wires, 1 ft. ( 12 in.), Red (+), Black (-), 18 AWG (Custom lengths available upon request) |
| Weight | 4.0 oz. |
Variation Specifications |
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| Security | Encrypt-RF® (256-bit key exchange and AES-128 CTR) |
ALTA Industrial Specifications |
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| Supply Voltage | 2.0 - 3.8 VDC |
| Battery Type | Replaceable 3.6V, 1800mAH (single AA sized) |
| Battery Life | Up to 10 Year Battery Life.** |
| Max Operating Temperature | -40° to 85°C (-40° to 185°F) |
| Optimal Battery Operating Temperature | +10°C to +50°C (+50°F to +122°F) |
| Solar Power Option | 3.0 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) |
| Dimension | 3.7 in x 2.32 in x 1.38 in |
ALTA 868 MHz Specifications |
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| Operating Frequency | 868 MHz Operating Frequency |
| Certifications | CE Certified. Tested and found to comply with: EN 300 220-2 V3.1.1 (2017-02), EN 300 220-2 V3.1.1 (2017-02) and EN 60950. |
| Security | Encrypt-RF® (Diffie-Hellman Key Exchange + AES-128 CBC) |
| Device Range | Device Range Up to 1,200 ft. non-line-of-sight, wireless device range* |
