The ProTex 21 device is an excellent hole card reader for blackjack dealers. The device always displays a green light, except if the dealer has a 10 value card and an Ace card present, the device will display a red light. The devices come with a power supply, adjustment tool, and table brackets. Cards can be purchased from any supply house. The devices can be plugged into any standard wall/floor outlet.
We don't know - we haven't had any fail! ProTex 21 devices come with a five year guarantee, which almost seems unnecessary as they've been in casinos for over 10 years and are still going strong!
Our device virtually eliminates cheating, speeds up gameplay, and makes for a far friendlier game. It increases the house take anywhere from 2-5%. There's no worry if the dealer and players are chatting; the dealer doesn't know any more than the player. Inadvertent tells from the dealer are eliminated. Players no longer ask if they should hit their hand, which speeds up the game.