Spacious 28 liter reservoirs with large opening (12-1/8" length by 10-3/8" width) and ambient temperature control from +5 to 150 degree C keep large or multiple samples at a constant, stable temperature. All models include adjustable over temperature and low liquid cutoffs. Pump inlet and outlet: 1/4" FPT rear discharge. Powerful, high wattage heaters (1100W at 60 Hz) respond quickly to changes in heat demand and provide excellent temperature stability. The standard model series provides ambient +5 to 150 degree C temperature control. Additional features include bright set and read LED display, three user defined temperature set point buttons and a 2 speed pressure (simplex) pump, suitable for closed loop applications. Power 240V, 50/60Hz. +/-0.05 degree C Temperature Stability. 2-speed, 9 or 15 L/min Pressure flow rate. Measures 13-3/64" width by 14-3/4" height by 22-3/4" depth.