Optical Utility Meter LED Pulse Sensor, Sheepwalk Electronics
Electricity meter optical pulse sensor - Made in Britain
Elecnova Energy Meter Single Phase DDS1946-2M, AC 230V 5(63) A 50/60Hz Electricity Usage Monitor Energy Pulse Digital LCD Display Din-Rail Mounted kwh Multimeter with MID Certification: Amazon.com: Tools & Home Improvement
Energy datalogging with pulse output electrical meters using the IL-Mini
Super Simple DIY House Electricity Meter - Share your Projects! - Home Assistant Community
Smart Energy Meter (ESP8266) | LW Project Blog
Amazon.com: IAMMETER,Bi-Directional,Din Rail,Monitor Solar PV,Power Usage Monitor,Home-Assistant,Zabbix,NodeRed,Modbus TCP/RTU, Three Phase Energy Meter, Net Energy metering, WiFi,Split Phase,150A,60Hz,CE,FCC : Patio, Lawn & Garden
EnergyMeterPulseSensor – Arduino Sensor Plugin
Electronics, Raspberry Pi and Home Automation : Monitoring Energy usage with the LED Pulse Sensor from Crucible Technologies