http://www.health.gov.on.ca/en/pro/prog ... manual.pdf
You should not be charged a penny more than 25% (75% discount from ADP, IIRC) of any of these prices. My local retailer tried to upsell me a monitoring service and tried to tell me it was mandatory. It’s not. If you’re buying local, take this list with you to your retailer.
Choose a model that’s more recent, as my local retailer also tried to sell me a much older model for the same price! These guys are bloody thieves. Don’t let them swindle you.