SHT11 is a chip-type temperature and humidity sensor chip with full scale calibration, two-line digital output, humidity measuring range: 0 ~ 100% RH, humidity measuring range: -40 ~ +123.8 ℃, humidity measuring accuracy: ±3% RH, temperature measurement accuracy: ±0.4% ℃ Response time: <8s; low power (typ. 30µW); can be completely submerged.