Interesting Facts About Casino and Gambling

The gambling world has become a significant place where people are gathering to get excited and take a risk. And the whole gambling sector is full of numerous and interesting facts. In this small article, we are going to cover some of them. Pssss… Maybe you did not even hear about them. And if you do not mind to learn more about gambling, follow the latest news and hottest reviews of online casinos and slots at the GamblerKey website.

The History of Cherries and Oranges in Slot Machines?

In the beginning, slot machines applied the classical card suits, including spades, clubs, diamonds, and hearts. At the edge of the 19th and 20th centuries, the authority institutions made a decision to take tough steps to confront gambling. For this reason, they banned the icon of card suits. But it is not that easy to take the manufacturers of the game slots!

They stepped up with a fascinating concept to replace the classical images with figures of cherries, oranges, and other fruits. When identical fruits were added in a game, the player earned ... chewing gum with the same flavor of the fruit. Sometime later, that harsh law against the suits was nullified, but the fruits have already taken a root as images on the scoreboard at slot machines.

Number 4 in China

By tradition, number four in China has a linage to the worst and the nastiest things, like failure, illness, or loss. There is even such an illness by the name of tetraphobia. The ground symptom of the disease lies in when a person is frightened of some number, image, or figure, he or she starts to evade it in every possible manner. Why is that happening? It is easy to explain – phonetically, the number 4 sounds like "die" in Chinese.

Even the hospital with numeration of 4 in the capital of China got a new number because no one had a desire to be treated in such a killing establishment. For this reason, multistorey casinos lack the 4th floor and the same number in the list of gambling tables as well. Generally, the 4th floor is called the 3rd one, or after the 3rd floor comes the 4th immediately.

Albert Einstein Detected a Way of How to Win at Roulette

From the moment of origin of roulette, many casino attendances have been looking for a way to figure out how to win. Different calculation systems were invented, including the laws of D'Alembert and the well-known probability theory. Furthermore, the catalog of various concepts and systems can be counted endlessly. The range of methods of winning is literally colossal: from various formulas to the theory of friction in the gears.

The topic was kind of popular at that time. And Albert Einstein once mentioned that he did some research and found gaps. It is uncomplicated to get a victory at the casino! What you need to do is to wait for a dealer who looks aside and vanish with the chips. Albert liked joking on this subject, which brought the talented mathematicians to a nervous breakdown.


Water detection 


    Flood Detector LD-12

   Spot flood detection


    Sensor WLD Relay 1W-UNI

   Up to 85 meters of water detection cable (connection DI or 1Wire UNI)


    Flood detector 1W-UNI 3m

   1D water detection can be fully submerged (connection 1Wire UNI)


Power 110/230V detection



   110/ 230 V single phase, max. load 8A


  Po wer Detector

 110/230 V voltage, relay output (max. 50V/ 13V)

Door contact

     Door contact MK4

   Designed for door opening detection.



You can connect to the RJ11 port (1-Wire) on all HW group monitoring devices. The sensors provide a continuous value.


Sensor CO2 1W-UNI

Temperature range: 0 to 50°C (IP67), Humidity range: 0 to 95% RH, CO2 range: 300 to 40000 ppm




    Temp-1Wire-Flat 3m

   Temperature range: -30 to 60°C (IP67)
   Sensor with flat cable is designed for monitoring freezers and fridges.



   Temp 1Wire Pt1000

  Temperature range: -50 to 200°C (IP67)



      Temp 1Wire Pt1000 Frost

    Temperature range: -200 °C to 160 °C (IP67)



      Temp HomeBox

   Temperature range: -30 to 70 °C


Relative Humidity 



   Humidity range: 0-100 % RH, Accuracy: 5% RH

Temperature, Relative Humidity 

      HTemp-1Wire Rack19

      Temperature range: -10 to 80°C, Humidity range: 0-100% RH



    HTemp HomeBox

   Temperature range: -30 to +70 °C
   Humidity range: 0 to 100% RH





  Temperature range: -10 to 80°C
  Humidity range :0-100% RH


   HTemp-1Wire 3m

  Temperature range: -30 to 80°C
  Humidity range: 0–100% RH



  HTemp-1-Wire Outdoor

Temperature range: -30 to 85°C
Humidity range: 0–100% RH



Light intensity 

  Light 1Wire-UNI

  Accuracy: +-10%

AC / DC Voltage  


   Sensor 0-20mA 1W-UNI

  8-point calibration table
  Accuracy: +-2%



   Sensor 230V AC 1W-UNI

  Voltage range:0–250 V AC
  Accuracy: 5%