1. Main features: - compact size and easy to use- heating or cooling output- built-in buzzer alarm- sensor calibration- sensor error detection - on delay time 2. Models: fx3se-05p00-cf: relay 5a, cf (selectable)fx3se-10p00-cf: relay 10a, cf (selectable)fx3se-16p00-cf: relay 16a, cf (selectable)