about test equipment on 2000 Toyota Camry

I m trying to find out were you can get test strips to check for a bad head gasket. they are suppose to tell you if there is exhaust emissions in the cooling system i have also seen some kind of tester that you draw fluid from the radiator to check for that.I dont know what there called or where to get them.

Thanks for any help

1 answer 2 comments
First, why do you think it has a bad head/gasket?
It doesnt,i just want to know where to get them
Combustion leak test kit aval. at most parts stores.