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AC Current Meter

  • Our wireless AC Current Meters measure the RMS current of an alternating current (AC) system using a current transformer (CT) that wraps around the “hot” wire of a two wire (hot, common, ground(optional)) power system. The sensor reports Minimum RMS current, maximum RMS current, average RMS current, and amp hours to the IOT Platform. The platform is capable of generating watt hour or kilowatt hour readings as well.

    ARNING: This AC current meter is for monitoring AC voltage only. Do Not Use with DC voltage.


    • Measures amp hours, max RMS current, min RMS current, and average RMS current.
    • Capable of generating Watt Hour or Kilowatt Hour readings using iMonnit.
    • Data logging for accumulated amp hour readings.
    • Can notify based on current levels or changes in current levels.
    • Measures current from 0 – 20 Amps.

    Data Snapshot

    Wireless AC Current Meters - 20 Amp - Data View in Software

  • Absolute Max CT Current 50 Amps RMS (Arms)
    Maximum Accurate CT Current 20 A rms
    Frequency Measurement Range 50 – 100 Hz
    Accuracy +/- 2% @ 2 to 20 Arms, +/- .07 Arms @ < 2 Arms
    Calibrated Accuracy with Appropriate Offset +/- 1% @ 2 to 20 Arms, +/- .035 Arms @ < 2 Arms
    Offset Limits -1.27 to + 1.27 Arms (default set to +.1 Arms)
    Measurement Resolution ~.01 Arms
    Weight 3.7 oz.
    Security Encrypt-RF® (256-bit key exchange and AES-128 CTR)
    Battery Type 2 Replaceable AA 1.5 V Batteries
    Dimension 4.375 in x 2.470 in x 1.12 in
    Supply Voltage 2.0 – 3.8 V (2 x AA 1.5V Batteries or Optional Power Supply)
    Battery Life At 1 hour heartbeat setting, included AA batteries will typically last 6-8 Years. **
    Max Operating Temperature Using AA Alkaline -18°C to 55°C (0°F to 130°F)
    Max Operating Temperature Using AA Lithium -40°C to 60°C (-40°F to 140°F)
    Optimal Battery Operating Temperature +10°C to +50°C (+50°F to +122°F)
    Enclosure Material ABS
    Operating Frequency 900 MHz Operating Frequency
    Certifications Complies with Part 15 of the FCC Rules. (FCC ID: ZTL-G2SC1)
    Complies with Industry Canada standards. (IC: 9794A-G2SC1)
    Device Range Device Range Up to 1,200 ft. non-line-of-sight, wireless device range*
    Security Encrypt-RF® (Diffie-Hellman Key Exchange + AES-128 CBC)
    • Current Monitoring
    • Current Usage
    • Amperage Monitoring
    • Amp Hour Meter
    • Watt Hour Meter
    • Kilowatt Hour Meter