Hoenderop BV GEFO Coldomat antifreeze hydrometer, Type: 5100

Suitable for ethylene glycol (ethanediol) -water mixtures. Professional workshop tool, with very precise reading. Thickened glass cylinder. Built in thermometer for the correct temperature correction with built in correction table. Large float with clearly legible scale, and colour and numerical graduations. Instructions on the packaging in 20 languages. Type: 5100.