The AC Voltage Detection Sensor notifies of the presence or absence of electricity. It is intended for use on devices using supply power from 24 - 500 VAC. Not intended for voltages higher than 500 VAC and also not intended for use with DC sources. Perfect for HVAC systems, sprinkler systems, sump pumps and any other type of electrical appliance monitoring. This sensor triggers on the state change from presence to absence of voltage and vice versa. The data is displayed as either "No Voltage" or "Voltage Detected".
ALTA sensors offer 3 to 4 times the range of standard sensor platforms, extending non-line-of-sight reach to an exceptional 1,200+ feet through walls (12-14 walls typical). Using Frequency-hopping Spread Spectrum (FHSS) also allows ALTA sensors to have better interference immunity from other wireless devices.
Superior power management provides ALTA sensors with almost twice the battery life of Monnit’s standard wireless sensors.
Integrated on-board data storage allows ALTA sensors to store data messages if communication to a wireless gateway is disrupted (power outage, Internet outage, or out of range). Messages that can’t be delivered will be time-stamped and stored in memory (up to the last 512 messages) until communication with the gateway is restored, at which point the messages will all be transmitted.
Over-the-air updates allow ALTA products to be updated remotely if new fixes or features become available.
* Actual range may vary depending on environment.
** Battery life is determined by sensor reporting frequency and other variables.
Voltage Detection Sensor Specifications |
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| Absolute Maximum Voltage | 600 VACrms / 850 VDC |
| Minimum Voltage Detected | -850 VDC |
| Accuracy | +/- (1 VACrms + 3% of reading) |
| Calibrated Accuracy with Appropriate Offset | +/- (.5 VACrms + 1.5% of reading) |
| Response Time | 40 ms |
| Supported Operation Modes | VACrms (root mean squared) Peak Voltage DC Voltage |
| 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. |
Variation Specifications |
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| Security | Encrypt-RF® (256-bit key exchange and AES-128 CTR) |
ALTA Coin Cell Specifications |
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| Battery Type | Replaceable 3.0V (CR2032) Coin Cell Battery |
| Dimension | 2.0 in x 1.125 in x 0.875 in |
| Max Operating Temperature | -7°C to +60°C ( 20°F to +140°F ) |
| Optimal Battery Operating Temperature (Coin Cell) | +10°C to +50°C ( +50°F to +122°F ) |
| Supply Voltage | 2.0 - 3.8 VDC |
| Battery Life | At 1 hour heartbeat setting, coin cell battery will last up to 4 years. ** |
| Enclosure Technology | Monnit PinchPower™ Wireless Sensor Enclosures |
| Enclosure Material | ABS |
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* |
