These include, the otoscope, thermometer, stethoscope, penlight, sphygmomanometer, bladder scanner, speculum, and eye charts. The word "sphygmomanometer" (, ) uses the combining form of "sphygmo-" + "manometer". The auscultatory method (from the Latin word for "listening") uses a stethoscope and a sphygmomanometer. The equipment needed is a thermometer, a sphygmomanometer, and a watch. In combination with a manual sphygmomanometer, it is commonly used when measuring blood pressure. This happens during the measurement of blood pressure with a sphygmomanometer. The measurement of these pressures is now usually done with an aneroid or electronic sphygmomanometer. The sphygmomanometer was invented by Samuel Siegfried Karl Ritter von Basch in the year 1881. He was notably a teacher of Scipione Riva-Rocci, the inventor of an early sphygmomanometer.