Provides humidity and temperature readings instantly. Ideal for constantly monitoring labs, fume hoods, walk-ins, plant areas and storage facilities. Large, easy-to-read 1/2-inch-high LCD digits can be read from 15 feet. Sampling rate is 2-1/2 times per second. Unit reads humidity from 25 to 95% RH and temperature from 32 to 122°F and 0 to 50°C. Resolution is 1% RH and 0.2°F (0.1°C). Accuracy is ±2% RH mid-range otherwise 4% RH. Temperature accuracy is ±1°C (0 to 40°C) otherwise 2°C. Individually serial-numbered Traceable® Certificate is provided from our ISO 17025 calibration laboratory accredited by A2LA. It indicates traceability to standards provided by NIST