First off, I have no business association with these folks other than being a customer. I went with their JuiceBox Pro (40) which easily handles 7.23 kW initial charge into our BMW i3-REx with metrics. But if you don't have metrics, this instrumented shunt could fit the bill.
This is a J1772 socket-and-plug with a daughter board that provides WiFi connectivity to monitor the charge voltage, current, and effect some controls:
source: emotorwerks.com/store-juicebox-ev-charging-stations/1631-juiceplug-a-universal-smart-ev-charging-adapter/category_pathway-23
Bob Wilson
This is a J1772 socket-and-plug with a daughter board that provides WiFi connectivity to monitor the charge voltage, current, and effect some controls:

source: emotorwerks.com/store-juicebox-ev-charging-stations/1631-juiceplug-a-universal-smart-ev-charging-adapter/category_pathway-23
- Anytime / anywhere monitoring and control of your charging via our best-in-class smartphone and web interfaces.
- Set up Time-of-Use schedules, your maximum wiring ratings, turn your charging on and off remotely, etc.
- Up to 10 automatic notification types that help you manage your EV charging experience. For example, JuicePlug can notify you that your car is still not plugged in by 10pm, etc
- Access to your charging history, cost of energy, and CO2 budget (pounds saved by driving electric, pounds saved by charging smart, and total pounds spent)
- Guaranteed full charge by specified time using the cleanest possible power - using award-winning smart charging algorithms from our JuiceNet platform
- Voltage: 100-270 VAC
- Power: up to 40 Amps / 10 kW
- Full J1772 support for compatibility with all vehicles & EVSEs
- Measurement precision (current, voltage, power, energy): better than 0.5%
- Monitoring & Control latency: less than 3 seconds for full smart-grid compatibility
Bob Wilson