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Shipping was fast, and all five of them arrived in order. They work great, I prefer these to the wifi version because they're less sensitive to distance and concrete walls. Blitzwolf needs a gateway to a gateway to a gateway to the Blitzwolf!
Does as “advertised”. 😊 Was easy to pair in Zigbee2mqtt in Homeassistant. Tip pair 1st close to Zigbee Coordinator then move to final working spot. 4 optimum indication I changed the polling from standard 60seconds to 15seconds and calibrated the Voltage measured with a multimeter. In my case the plug measurements had to be corrected in Zigbee2mqtt>device>settings(specific) with +3% to equal the multimeter. Only calibrate Voltage and Amperage as power is calculated from those. Word of safety. They are supposed to be able to handle 16A (3650W) switching. Give yourself some safety margin, do not underestimate the initial power draws with electric motors 4example. They can easily be a 150% of the rating.