A dual monitor for temperature and humidity in one compact and large 3/4" digital display unit. Useful for desiccators, incu-bators, refrigerators, fume hoods, EM labs, stock rooms, clean rooms, chemical storage areas, warehouses, etc. Recalls min/max temperature and min/max humidity readings over any time period. Stand or wall mounted. Comes with two "AAA" batteries which last one full year. Temperature range 0/50 degree C and 32/122 degree F in 1 degree C or F resolution with an accuracy of +/-5%RH (at 59 degree F to 104 degree F).