OUTPUT of Electrostatic R.P. MR 3 inch, RR 1 inch.. Colour change using iodine-black, bromine-brown Torch dim and failure 1 feet with microwave technology 10secs. Needle Deflection 2-3 inches using Nicrosil and Ceramic magnets. Validity 1 month. Precautions: Never touch with bare hands or without footwear DC shock risk. Always use insulator such as rubber or thermocol for transporting. Electrostatic R.P.pulls rice, sugar, and many cereals remember. Ammonia or Acetone compounds for ujala function.