Bioline Germany DK-420 Water Bath, a laboratory instrument used to incubate samples at a constant temperature. Model: DK-420. Purpose: Heating reagents, melting substrates, or incubating cell cultures at precise temperatures. Features: Includes a digital PID controller (XMTE-206) for accurate temperature management and a stainless steel inner tank. Operating Range: Typically from room temperature up to \(100^{\circ }\text{C}\).