à¤Ã×èͧÇÑ´ÍسËÀÙÁÔ ¤ÇÒÁª×é¹ µÑé§ Alarm HI/LOW ä´é 800041R ÊÒÁÒöµÑ駤èÒàµ×͹ Alarm ¤ÇÒÁª×é¹ áÅÐ ÍسËÀÙÁÔ ÊÙ§ËÃ×͵èÓä´é à¤Ã×èͧÇÑ´ÍسËÀÙÁÔ ¤ÇÒÁª×é¹ µÑé§ Alarm HI/LOW ä´é 800041R This device allows the user to set minimum and maximum temperature and humidity alarms. When the temperature or humidity exceeds the preset parameters, an audible alarm will sound. Simultaneous display of ambient humidity or temperature with both minimum and maximum readings. User selectable °C or °F. Useful wherever monitoring of humidity and temperature is critical as in pharmaceutical and semiconductors clean rooms, warehouses, museums, workplaces, environmental cabinets, greenhouses, and ripening rooms. Stands or wall mounts and comes with 1 AAA battery. Spectification Model Range Resolution Accuracy Temperature 800040/41 -20~70C & -4~158F 0.1C&F 1C, 2F between -20~50C, -4~122F 1.5C, 3F above 50C, 122F Humidity 800041 20~99% 0.01 6%RH between 30~60%RH at 25C 8%RH between 60~90%RH at 25 Range Resolution Accuracy Temperature 800040/41 -20~70°C & -4~158°F 0.1°C&F ±1°C, 2°F between -20~50°C, -4~122°F ±1.5°C, 3°F above 50°C, 122°F Humidity 800041 20~99% 1% ±6%RH between 30~60%RH at 25°C ±8%RH between 60~90%RH at 25°C 800041R Hygrometer SPER Scientific Temperature Thermo-Hygrometer µÑé§ ALARM à¤Ã×èͧÇÑ´ÍسËÀÙÁÔ ¤ÇÒÁª×é¹