Price is around $150 different between the systems. I like the choies for the Elk keypads, the LED off capability, function buttons, and the interface. Also the capability to run Insteon is nice if I wanted to go that route. With the modules a hardware failure means I'm only out the cost of the module that failed.
HAI will be a cleaner install without all the extra modules, but the single board is costly. HAI also seems to have better UPB, Z-Wave, and Zigbee intergration. I can't find a definite answer on if ZWave switches will report their status to the HAI controller. With Elk I've read this is not possible. The downsides to HAI are that it can't send email notifications from the controller and the console keypad ready / arm LED can not be turned off. I'm not sure how I can mount the console by my front door as it will be visible.
(1) HAI 20A00-2 - Omni Pro II Controller in Enclosure
(1) ELK-TRG2440 - Resettable 24VAC-40VA Power Supply
(2) HAI 33A00-4 - LCD Console for HAI Omni Controllers w/ Speaker/MIC
(1) HAI 1105W - PC Access Programming Software - Installer Version
(2) HAI RC2000WH - Omnistat2 Single Stage/Multi-Stage - White
(1) HAI 10A07-1 - 4 Relay Module
(1) HAI 36A00-1 - HLC Powerline Interface Module (PIM) and Cable for Omni Controllers
(1) HAI 45A00-1 - 64-Zone Wireless Receiver
$2,100
With the HAI system should I be getting the structed panel mount version of the board? It looks like this would fit into the ELK-SWB14 enclosure. Any experience with the Zigbee Omnistat2? I'm debating going that route as it is going to require cutting holes in the drywall to run the extra cable needed to the thermostat.
(1) ELK-M1GSYS3 - ELKM1 Gold Security and Automation Kit with No Keypad
(1) ELK-M1XEP - elk Ethernet Port Interface
(2) ELK-M1KP2 - ELK LCD Keypad
(1) ELK-M1DBHR - Data Bus Hub Retrofit
(2) ELK-M1XSP - M1 ELK Serial Expander, Lighting/Thermostat Interface
(2) HAI RC2000WH - Omnistat2 Single Stage/Multi-Stage - White
(1) ELKM1PCSPIM - PulseWorx UPB Powerline Interface Module (PIM) for ELK M1 Controller
(1) ELK-M1XRF2H - ELK Wireless Receiver For Use With Honeywell Sensors
$1,950