Dual-channel LoRaWAN AC energy meter features 10A/100A CT clamps, measures temperature and humidity

The AgroSense AGLW2CT is a dual-channel LoRaWAN-based industrial AC energy meter that utilizes 10A and 100A CT clamps to measure power consumption non-invasively. The device features two 0–5V analog inputs for the clamps, an AHT20 temperature & humidity sensor, and local storage for 3,300+ records. It supports LoRaWAN 1.0.3 OTAA Class C and works with TTN, Datacake, and CloudStudio. The device operates within the -40°C to 85°C industrial temperature range and is suitable for contactless current sensing, overload/no-load detection, and machine health monitoring.

We had previously covered, and even reviewed, several Wi-Fi-connected CT clamps meters such as the MachineQ’s MQpower CT, Seeed Studio’s XIAO-2CH-EM, and Emporia’s Vue Gen 2 energy monitor, but it’s the first time we’ve come across a LoRa AC energy meter with CT clamps. Earlier this month, we noticed the MOKO LW005-MP LoRaWAN Smart Plug and power meter, but it relies on direct AC power measurements and is limited to up to 16A.

AgroSense AGLW2CT specifications:

• SoC  – Unnamed, but it’s from ASR. Proably one of ASR650x series chip (e.g., ASR6501, ASR6502), which integrate a LoRa transceiver + Arm MCU
• Storage – Local storage for 3,300+ data records
• Connectivity
  • Protocol – Standart LoRaWAN V1.0.3
  • Operating mode – OTAA Class C
  • Max TX power – 22dBM
  • Sensitivity – -137 dBm (SF12, 125 kHz)
  • Frequency band – EU868 / US915
  • Range – up to 2 km in urban areas, 10 km in open areas
• AC power measurement
  • 2x non-invasive CT clamps
    • 10A-1V CT clamp
    • 100A-1V CT clamp
  • Plug-and-play installation
• Ssensor – AHT20 temperature & humidity sensor
  • • Temp range – -40°C to 80°C, ±0.5°C accuracy
    • Humidity range – 0–100% RH, ±2% accuracy
• Misc
  • Configurable data uplink interval
  • AT command interface for advanced settings
  • User button
  • Reset button
• Power
  • Input voltage – 12–24V DC
  • Power output for sensors – 5V ±0.2V, max 500mA
• Dimensions – 95 x 90 x 40 mm
• Temperature – -40°C to +85°C
• Mounting – Wall mount

I am not certain about the SoC used in this LoRa-based AC energy meter. However, I zoomed in and AI-enhanced the top image from the datasheet and was able to confirm that the chip is from ASR. Previously, we reviewed the AgroSense LoRaWAN Smart Agriculture sensors, and a teardown revealed that the ASR6601CB was used. Based on that, I was able to speculate that the SoC could belong to the ASR650x series. Unfortunately, I couldn’t find any official datasheet for it.

The AgroSense AGLW2CT is compatible with LoRaWAN networks such as The Things Network (TTN), ChirpStack, and Datacake LNS. For application-level monitoring and control, it supports ThingSpeak, Datacake, CloudStudio, and other platforms through webhook-based integrations. The device provides uplink and downlink support using JSON-based payloads, and ready-to-use decoder scripts are available for both JavaScript (TTN) and Datacake’s custom parser, simplifying the development process. There is also an option to customize the reporting interval and retrieve buffered data using downlink commands, making it a flexible solution for IoT developers and system integrators. More information regarding software support and documentation, as well as demos, can be found on GitHub and the Wiki about AgroSense solutions, but they have limited information about the AGLW2CT per se.

The AgroSense AGLW2CT, 2-channel LoRaWAN AC energy meter is available on the Makerfabs website for $29.80.

Debashis Das

Debashis Das is a technical content writer and embedded engineer with over five years of experience in the industry. With expertise in Embedded C, PCB Design, and SEO optimization, he effectively blends difficult technical topics with clear communication

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