Mike, They take normal eveready watch batteries. Mine holds 4. My wife gets them at the jewelry dept. at the wallyworld she works at. Around 3 bucks a shot. I can get a number off one of them if you need. Tim ----- Original Message ----- From: Mike Solito To: apisto@listbox.com Sent: Monday, December 24, 2001 4:31 AM Subject: Dissolved solids tester Does anyone on the list have a Hanna TDS-1 tester I can't find batteries for this tester??? Does anyone have the batteries from eveready or othe batteries that you have used. Mike Solito ------------------------------------------------------------------------- This is the apistogramma mailing list, apisto@listbox.com. For instructions on how to subscribe or unsubscribe or get help, email apisto-request@listbox.com.