OPPAMA 1-572 PET-2000 ELECTRONIC HOUR COUNTER OPPAMA BRUSH CUTTER CHAINSAW BLOWER VACUUM CLEANER HEDGE CUTTER MOTOR PUMP - Suitable for 2-stroke engines - From 100 to 30000 1/min and for 4-stroke engines from 100 to 15000 1/min. - Also used as a speedometer. - Withstands between -20 C and 60 C. Reference : 1-572