Alpha 1-4 LSCbasic freeze dryer, 230 V, 50 Hz, air-cooled, environmentally friendly, natural refrigerant, without vacuum pump, table-top model, integrated base plate for direct attachment of drying chambers or accessories with a diameter of 300 mm, ice condenser and ice condenser chamber and defrost water valve completely made of stainless steel, ice absorption capacity max. 4 kg, ice condenser capacity max. 4 kg/24h, ice condenser temperature approx. -55°C, ice condenser chamber 6.5 litres, equipped with hot gas defrosting, vertical arrangement, particularly suitable for freeze-drying in round-bottom flasks, wide-neck filter cap bottles and/or on unheated shelves, can also be used as a cold trap for rotary vacuum concentrators, equipped with system control LSCbasic (Lyo-Screen-Control basic): VGA-TFT colour display, graphics-oriented user interface with touch screen, clear intuitive user interface with quick access to essential process data, multilingual user interface, password protection, display of maintenance intervals, display of vacuum in conjunction with vacuum measuring probe VCP 63 order no. 125488, vacuum control in conjunction with pressure control valve, order no. 125910, Alpha 1-4 LSCbasic