Dental apex locator helps in the finding of apical foramen which provides the correct working length for root canal preparation.Modern technology endomotors are endomotors with apex locator,which eases the functioning more. The endomotorwithout and with apex locator varies on price. The range of apex locator varies from thousands to lakhs. The most economical endomotor in market is woodpecker endomotor with apex locator ranges from Rs 40,000 onwards. Dental apex locator , alone ranges from Rs 8000 onwards.