The DA-025-24-02-00-00 is a Tunnel Series thermoelectric cooler assembly designed for precise temperature control of small chambers in analytical and medical diagnostic instruments. It features a compact design with premium fans pushing air across high-density heat sinks, custom thermoelectric modules for maximum cooling capacity, and moisture-resistant insulation to prevent condensation penetration. The unit operates on 24 VDC nominal (29.5 VDC maximum) with a current draw of 1.6 A running and 2.0 A startup, delivering a maximum cooling capacity of 25 Watts at ?T = 0°C and a maximum temperature differential of 42°C at Qc = 0. It is rated for -10°C to 49°C operating temperature, features direct conduction heat transfer on the cold side and forced-air convection on the hot side, and is suitable for applications including PET/SPECT scanner cooling, refrigerated centrifuges, high-performance liquid chromatography (HPLC), and thermal management in beverage and liquid chromatography systems.