... -232 Interface & Software 3).MAX/MIN Data hold HUMIDITY TMEPERATURE METER MS-6503 FEATURES•Accord with IEC1010 standard ... °C ~ +60°C, -4°F ~ +140°F•Resolution: Humidity -> 0.1%RH,Temperature -> 0.1°C, 0.1°F ... •Accuracy: Humidity -> ±2.5%RH AT 25°C, Temperature -> ±0 ... .7°C, ±1.4°F•Response time: Humidity -> 75 SEC. IN SLOWLY MOVING AIR, Temperature -> 40 sec ...