PolyScience Performance Digital 20L -30° Refrigerated Bath Circulator 240V/50Hz The patented WhisperCoolTM environmental control system features part-load sound levels below that of conventional speech at a distance of two meters. This innovative environmental technology also optimizes compressor and evaporator performance, reducing overall energy consumption and prolonging compressor life. The front-mounted drain port and washable air filter simplify cleaning and maintenance. The chemical-resistant DuraTopTM top plate remains cool at high temperatures and is easily cleaned. Rear inlet/outlet ports also allow use in external process applications. Basic and Standard Digital Controllers feature the EasyViewTM LCD measuring 2.12" x 3" (5.4 x 7.6 cm) and display actual and set point temperature simultaneously. Performance Digital Controller utilizes sensitive, icon-driven touchscreen so you can scroll through menus, functions, and options-even when wearing gloves. Display allows easy monitoring of set value, actual value, and temperature trend information. View screen text in 11 languages. Remote temperature sensing and control allow precision management of external baths and devices. Serial, USB, and Ethernet communication. Performance Programmable Controller includes all the Performance Digital controller features plus unlimited time/temperature programmability. Bǖy thё thíng уοū want!ß! Hìgh pёrfοrmanсe ω¡th loω c0st!