File:Single-phase reactive power meter.jpg - Wikimedia Commons
3 phase digital reactive power meter 120*120/96*96/72*72/80*80 mm Class 0.5 LED panel meter with RS485 communication|panel rubber|rs485 to serial converterrs485 serial - AliExpress
Mobile active, reactive, apparent power meter - PM 600
Acrel Three Panel Energy Meter LCD Display Voltage Power Factor Current Active Reactive Power|Energy Meters| - AliExpress
How to measure reactive power using a wattmeter - Quora