High AccuracyFast response that measures every 10 seconds to provide updated and accurate readings, wide measuring range. Temperature measuring range: -5070(-122158); Hdity measuring range: 10% ~ 99%RH.Temperature measurement accuracy: 1(2); Hdity measurement accuracy: 5%RH. Accurate MonitoringOur digital thermometer hygrometer and hdity gauge is precise within 1 temperature and 5%rh hdity levels. Strong Anti-InterferenceStrong anti-interference, Suitable for reptile like lizard spider tortoise terrarium tank vivarium greenhouse, cigar hdors or refrigerated cabinets, display counters hdity temperature measuring. Easy to Read &Compact SizeTemperature range is Celsius only on this model, bright and black front panel with a clear LCD display, easy to read even from a far distance. Level icons indicate comfortable, un-comfortable and normal conditions, small and light enough for saving space and carrying around. NoteDue to the lack of battery power, sometimes the value may be incorrect. Replace the battery at this time.