The mini dry bath is a micro-processor controlled heating block with heater (heating types) or semiconductor refrigeration (cooling types) technology. It adapts onboard use, smart, light and convenient for movement, suit for any kind of occasions. The type 100F is with fan for heat dissipation, which makes temperature down much faster than nature cooling. Product features 1. Unique designed. Smart and light, convenient movement, suit for various occasions. 2. LCD simultaneously display setting and actual time and temperature. Temperature calibration function. 3. Automatic fault detection function with buzzer alarm. 4. 24V DC input power, built-in over-temperature protection device. 5. Various of blocks for optional choice. Convenient for replacement. Easy cleaning and disinfection.