Sykes Refractometer US40D612 For use with HVY4LDR 3 metre cord For use with HVY4LDR Deb Stoko Cleanse Heavy 4L Dispenser (Not Included) Throat Depth: 120 mm Tapped Hole: M10 Capacity: 254 mm Clamping Pressure: 454 kg Rail Size: 22 x 11 mm Weight: 1 AdBlue and screen wash using an optical prism technique Features internal light for use in poor light conditions Coolants 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 deg C battery acid