Featuring 12 x 12 in. milled-flat cast aluminum heater top, EchoTherm™ Model HP61A offers even heating with ambient to 450°C range controlled to ±1°C of target. Programming is done via front panel membrane switch and LCD, and accuracy is 1% of reading. Unit stores 10 programs with up to 10 steps – temperature, temperature ramp rate, time – in memory that can be made to repeat. Features also include RS232 port, adjustable temperature ramping rates, and countdown timer with alarm and Auto-Off.