I continue my series on electronics in mentalism ! (part 3)

 There are many ways to achieve the tour "In Which H and" to  know how your hand witness hid a small object. Today, I propose that electronic versions, often more expensive but more reliable.

1) Sixth Sense v.2,5 (Hugo Shelley) (320 euros)

Sixth Sense helps you through an electronic sensor to locate a piece (magnetic) located in the closed hand of the viewer. You can even know whether the battery side or the part face side is facing up according to the pulsations of the detector.

2) UFO 4 (Labco Magic) (700 euros)

For me, a more efficient and more reliable electronic sensors objects. It benefits from RFID technology. It will detect many objects, a tea bag among others, an ESP symbol chosen by a spectator, a play, a ball, etc.

3) Probe Rhinesense mk 4 ,  ($ 500) (for the moment, the object is no longer in stock)

It gives a viewer an ESP deck of cards. The mentalist's back is turned while the viewer puts the cards in his pocket. The mentalist turns and  guesses right away  that he has chosen. A tour created by Dave Everett and Sean Taylor.

4) Finders Keypers (ProMystic) ($ 399)

The mentalist guess how closed hand is a key.

5) I-Know (Magic Wagon) (420 euros)  

A great tower that has many possibilities. The feature of this product is that you can now achieve this effect to the other end of the room and with borrowed objects.
I-Know is an electronic device that does all the work for you, in fair conditions:
 - You allows the use of ordinary objects that can be borrowed from the spectators (coins, rings, keys, etc.).
 - You're absolutely never next to the spectator during the performance.
 - the effect can be repeated immediately to other borrowed objects.
 - with the vibrating housing, you may actually turn with blindfolded.

It allows an incredible effect  of "In qui hand"  :  while the magician's back is turned, a spectator is invited to conceal a folded note in one hand and a ring in the other. Without looking back, the magician is able to reveal in whose hand is the ticket and where is the ring!