Universal digital demonstration counter for measuring time,
 frequency and pulse rates, display: 7 segment LED display,
 6 digits, digit height 26 mm 
 
 Time measurement:
 4 measuring ranges from 101 ... 104 s times the value displayed, measurement can be controlled using any signal source or light gate e.g. P1320-3LR, the two time value inputs may be combined logically in every possible way, adjustable signal threshold of time value inputs using potentiometer, light-emitting diodes for monitoring operation
 
 Frequency measurement:
 Fully automatic in 4 ranges from 101 ... 104 kHz times the value displayed, signal may be monitored audibly by switching on loudspeaker 
 
 Pulse rate measurement:
 Input for Geiger-Müller tube, anode voltage may be set in 12 steps from 325 to 600 V, measurements scaled down by 1:100 possible, signal may be monitored audibly by switching on loudspeaker ABS plastic case with 2 recessed handles
 Dimensions: 260x150x210 mm
 Voltage source: 230 V/50...60 Hz