Type 
 

BSF7-D 
 

BSF8-DB 
 

BSF8-DT 
 

Modes

standby
activ
service

standby
activ
service

standby
activ
service

Auto-on with first punch

yes 

yes 

yes 

Configurable functions

clear
check
start
control
finish

clear
check
start
control
finish

clear
check
start
control
finish

Real time clock

yes 

yes 

yes 

Display

bottom side

bottom side

top side

Battery

Lithium

Lithium

Lithium

Capacity

AA / 2000 mAh

1/2 AA / 1000 mAh

1/2 AA / 1000 mAh

Battery voltage metering 

yes 

yes 

yes 

Battery consumption counter 

yes 

yes 

yes 

Typical working time without battery change

4 - 7 years

3 - 5 years

3 - 5 years

Backup-memory

128 kByte

128 kByte

128 kByte

Max. no. of punches / SI-Cards in the backup memory

21802 / 1022

21802 / 1022

21802 / 1022

Backup memory overflow

oldest date will be overwritten

oldest date will be overwritten

oldest date will be overwritten

Case

transparent

half transparent red or blue

half transparent red or blue

Insert

red or black

     -

     -

Dimensions

113 x 62 x 31 mm 

101 x 51 x 19 mm

101 x 51 x 19 mm

Weight

148 g

62 g

62 g

Article number 

11010 

11110

11120