Disc (easier to read) rather than ball type Anti-Freeze tester with plastic body and rubber bulb. Yes, the old glass ones are more retro but they break the first time you drop them- and you will.
Freeze protection level indicated by 6 x floating coloured discs. Easy-to-read temperature table. For..
Many reasons for buying:
1) Simply excellent for diagnosing cooling system problems. Point the laser light at your engine hoses, block, thermostat housing, radiator (across and down) and plot the results to find out where things are getting blocked or not flowing properly.
2) Paint dryin..