Product Code Product Description PRSD-1450 Muffle Furnace 3 lt. 1000°C, 220-240 V 50-60 Hz PRSD-1455 Muffle Furnace 6 lt. 1100°C, 220-240 V 50-60 Hz PRSD-1460 Muffle Furnace 5 lt. 1200°C, 220-240 V 50-60 Hz PRSD-1462 Muffle Furnace 5 lt. 1200°C Programmable Timer, 220-240 V 50-60 Hz PRSD-1465 Muffle Furnace 5 lt. 1600°C, 380 V 50 Hz The PRSD Series Muffle Furnaces are widely used for determining various properties of construction materials, and they cover a temperature range from 1100°C to 1600°C, they are all front loading for easy operation and are of a double skin construction to maintain a cool outer case. Up to 1300°C, open wire based models are also produced. Excellent temperature control is provided by a PID digital control system. A vertical counter balanced door keeps the hot insulation away from the operator which opens in an upward movement. The Furnace has a safety switch which isolates the power when the door is opened.