Legal weed is looking for its shot glass. Investors are pouring money into the race to develop devices that promise precise marijuana dosing. It's part of an effort by the $10 billion cannabis industry to reach beyond its traditional stoner base to customers who might want to unwind without getting blitzed. Unlike alcohol or Tylenol, there's never been a standard dosage for THC, the main psychoactive ingredient in pot. The latest company to join the...
