X1 Current Monitoring Sensor

X1 Current Monitoring Sensor

X1 Current Transformer Sensor is a way to remotely measure the amount of current being used in a wire and determine power usage.

Use Cases:

  • Electricity Usage Monitoring
  • Solar Generation Monitoring


X1 Current Transformer is an IoT sensor developed to monitor electricity usage. Can easily fit into confined spaces while the primary conductor is still live. The sensor is a compact design with a mechanical hinge for quick and easy installation. The main body comes in the familiar X1 form factor for a compact small size.

Additional information


LoRaWan, Bluetooth, Wifi, Cellular


Black, White



  • IP68 rated waterproof casing
  • Aluminum and Polycarbonate construction
  • Size: Cylindrical 40mm (D) x 109mm (H)

Sensor Range

  • Input Frequency 50 Hz – 400 Hz
  • Operating temperature: -15 °C (Min) to 50 °C (Max)
  • Maximum Primary Voltage 720VAC
  • 1m Long Flying Lead
  • Mechanical Hinge


  1. 30A Max Input Current – Max Cable Diameter 10mm
  2. 60A Max Input Current – Max Cable Diameter 10mm
  3. 120A Max Input Current – Max Cable Diameter 16mm
  4. 250A Max Input Current – Max Cable Diameter 24mm


  • Xtensa® dual-core 32–bit LX6 microprocessor(s)
  • Micro-Python Operating System


  • RAM: 4MB
  • External flash: 8MB

LoRa specification

  • Semtech LoRa transceiver SX1276
  • LoRaWAN stack
  • Class A and C devices

LoRa Operating Frequencies

  • 868 MHz (Europe) at 14dBm maximum
  • 915 MHz (North and South America, Australia and NZ) at 20dBm maximum
  • 433 MHz (Europe) at 10dBm maximum
  • 4.470 – 510 MHz (China) at 14dBm maximum

LoRaWAN Regions

  • AS923, AU915, EU868, US915

LTE CAT-M1/NB-IoT (Optional)

  • Supports narrowband LTE UE categories M1/NB1
  • Peak power estimations:
    • TX current = 420mA peak @1.5Watt
    • RX current = 330mA peak @1.2Watt

 WiFi Connectivity

  • MQTT Protocol Compliant
  • 802.11 b/g/n/e/i
  • 802.11 n (2.4 GHz), up to 150 Mbps
  • 802.11 i security features: pre-authentication and TSN
  • Wi-Fi Protected Access (WPA)/WPA2/WPA2–
  • Enterprise/Wi–Fi Protected Setup (WPS)

Bluetooth Connectivity

  • Compliant with Bluetooth v4.2 BR/EDR and BLE specification
  • Class–1, class–2 and class–3 transmitter without external power amplifier
  • Enhanced power control
  • +12 dBm transmitting power
  • Adaptive Frequency Hopping (AFH)

Power Options

  • Rechargeable 18650 LiPo Battery 1( 1 x 3400mAh batteries,3.7V operation)

Mounting Kits

  • Quick Install Mounting Bracket

Security & Certification

  • 256-bit SHA, MD5, DES, AES Encryption
  • CE, FCC, IC and RCM certified
  • CE 0700


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The size of the Payload for this device is 12 bytes.

Please refer to this article to learn more about decoding a payload: Decoding a Payload

Sample Device Data:  

Voltage: 4106 mV
Message Number: 1
RSSI -(dB): 1
ErrorCode: 0

Sample Sensor Data: