It’s strange that the pdf document on Lowes regarding the 3210-L model doesn’t say anything about Zwave, only Zigbee. It seems they are missing out on a major selling point by not marketing the Zwave repeater aspect.
So if I purchase 3210-L, it is certain that it will have the Zwave repeater feature?
It’s there, under “technical specifications” on the second page. Most people don’t know what a repeater is anyway, so I don’t think it changes the marketing any. People who know they need a repeater know to look for it.
You shouldn’t need to use any custom code for the Iris plugs. Did you get the L or L2? The L2 may require you to manually set the Zigbee side to “Smartpower outlet” type since its fingerprint may not be added yet. the z-wave side should be fine as whatever it joins as.
the zigbee part is easy. Start the SmartThings pairing from the app and then plug it in. It should find it. Verify it works by plugging a lamp or something into it, turning it on and off from the app and making sure the power draw changes and the device turns on and off.
The z-wave part can be tricky. From the linked thread:
"Second: The Z-Wave repeater
Once you have the Zigbee Plug added into SmartThings you can go back to add the Z-wave repeater. In order to do this, first start the pairing mode by selecting ‘Connect New Device’ within the Marketplace in the SmartThings app. Once the hub is searching for a new device, hold down the button on the front of the Iris Smart Plug until the light begins to blink, this should only take a few seconds. Some users have reported than holding down the button doesn’t work and instead they needed to tap the button 8 times rapidly in order to get it into pairing mode. Once the light is blinking SmartThings should discover the repeater as a ‘Z-Wave Device’. This is the proper devicetype for the repeater"