ThermoTST TS345AS is a precise high and low temperature impact airflow instrument with a wider temperature range of - 55 ℃ to+225 ℃, providing a very advanced temperature conversion test capability. Temperature conversion from - 40 ℃ to+125 ℃ for about 10 seconds; Compact and low noise design meets the requirements of desktop applications. TS345AS is purely mechanical refrigeration, without liquid nitrogen or any other consumable refrigerant.