Category
page 1Counting instruments
Geiger counter
instrument used for measuring ionizing radiation
alarm clock
type of clock used to wake up a sleeping person at a certain time
proportional counter
gaseous ionization detector
frequency counter
measuring device that determines the basic frequency of the alternating component of an electrical voltage
axle counter
system used in railway signalling

bicycle counter
device for counting bicycle traffic
Coulter counter
apparatus for counting and sizing particles suspended in electrolytes
debt clock
public counter of government debt
tally counter
mechanical device used to maintain a linear count
people counter
device that counts people as they pass
traffic count
count of the number of people and/or vehicles passing through a space
Jones Counter
device fitted to a bicycle to count revolutions of the wheels