Tower Hobbies has a Glo Bee Tach for $28. the shipping is $8 so I buy other things like epoxy and propellers to make it worth the shipping. No tax! They also have there Tower tach for $20 but it doesn't do 4-blade props, or store tach readings in memory, like the Glo Bee. Check with the local hobby store, I have been surprised to find some things cheaper there - but not tachs they sell the Glo bee near me for $45. www.towerhobbies.com