REFRACTOMETER This multi-purpose tool tests coolant, battery acid, AdBlue and screen wash using an optical prism test technique
Features internal light for use in poor light conditions
Coolant – tests both propylene and ethylene based anti-freeze coolant solutions and determines the freezing point
Battery acid – indicates the specific gravity of the battery electrolyte
AdBlue – indicates % concentration of AdBlue additive
Screen wash – shows the freezing point of screenwash fluids
Freezing point shown in ºC