Preset Counters electronic

901
Presets: 1
Adding or subtracting.
Power supply: Battery
Number of digits: 6
907
Presets: 1
Decade keyboard, 5kHz count frequency.
Power supply: AC+DC
Number of digits: 6
908
Presets: 2
Decade keyboard, 5kHz count frequency.
Power supply: AC+DC
Number of digits: 6
923
Presets: 1
Multicolour display, decade keyboard, 60 kHz count frequency.
Power supply: AC+DC
Number of digits: 6
924
Presets: 6
Multicolour display, decade keyboard, 60 kHz count frequency.
Power supply: AC+DC
Number of digits: 6
716
Presets: 1
Opt. serial interface.

Power supply: AC+DC
Number of digits: 6
717
Presets: 2
ATEX version available, opt. Serial interface.
Power supply: AC+DC
Number of digits: 6
560
Presets: 2
LED multifunction preset counter, 14 segment LED, automatic help texts.
Power supply: AC+DC
Number of digits: 6
new
571
Presets: 2
Timer (also reciprocal), analogue output, serial interface.
Power supply: AC+DC
Number of digits: 6
572
Presets: 4
Dual preset counter with 4 outputs and analogue output, serial interface.
Power supply: AC+DC
Number of digits: 8