InstallMatesNSM1280 8-Way Coax Cable Tester with Case

My toner stopped working after a month.I replaced the batter.it still will not detect any of the toners.advice ????

Instructions for toning are incomplete - do I need a separate tool to detect tone?

What to use to test that coax is "working" and the new connector is on correctly?

I wanted to know if I can buy replacement tips for this toner??