Aug 5 (Reuters) - UK scientific instruments maker
Spectris ( SEPJF ) has agreed to a sweetened offer from U.S. firm
KKR valuing it at 4.2 billion pounds ($5.57 billion), it
said on Tuesday, withdrawing its backing for a lower offer from
rival suitor Advent.
($1 = 0.7534 pounds)
(Reporting by Yadarisa Shabong in Bengaluru; Editing by Mrigank
Dhaniwala)