Automotive Coolant Refractometer with ATC chillers-heaters-and-purification Less than 3% (up to

Less than 3% (up to 4000 μmol/m2/sec) LCD update time 0

Maintains the original air porosity: the cells do not compact after continual watering

After dozens of lab tests and real world tests

but not suitable for aeroponic or hydroponic recirculation systems

It securely accommodates the 8" FloraCap®

Automotive Coolant Refractometer with ATC chillers-heaters-and-purification Less than 3% (up toThe antifreeze refractometer can be used for measuring the freezing point of glycol, antifreeze, coolant and battery acid. This refractometer features Automatic Temperature Compensation (ATC), and can also be used for checking the condition of electrolyte solution batteries. Measures the freezing point of automobile antifreeze based on ethylene glycol or propylene glycol. This is a quality optical instrument that includes a soft carrying case, bulb