Electric soldering unit Compact, powerful electric tool for soft soldering. With safety transformer. For trade and industry. For the building site and the workshop. Copper tubes Ø 6–54 mm, Ø 1/4–2 1/8". Heating capacity 900°C (1650°F). REMS Contact 2000 – the smallest, strongest and fastest unit of its kind. 2000 W soldering power.