DHT22 Temperature and Humidity Sensor Module

DHT22 is a com­pound dig­i­tal tem­per­a­ture and humid­i­ty sen­sor which out­puts cal­i­brat­ed dig­i­tal sig­nals. Thanks to the ded­i­cat­ed dig­i­tal mod­ule acqui­si­tion tech­nol­o­gy and  tem­per­a­ture and humid­i­ty sens­ing tech­nol­o­gy applied to the mod­ule, DHT22 comes with very high reli­a­bil­i­ty and excel­lent long-term sta­bil­i­ty.DHT22 includes a capac­i­tive mois­ture sen­sor and a NTC tem­per­a­ture mea­sur­ing ele­ment which is con­nect­ed to a high-per­for­mance 8‑bit micro­con­troller, result­ing an excel­lent qual­i­ty, super fast response time, strong anti-inter­fer­ence abil­i­ty and extreme­ly cost-effi­cient.Com­pared with SHT10 tem­per­a­ture and humidi­tiy sen­sor, DHT22 enjoys a high­er pre­ci­sion and low­er price, mak­ing it an ide­al choice for mid price range, high per­for­mance tem­per­a­ture & humid­i­ty sen­sors.If used togeth­er with Arduino expan­sion boards, you’ll eas­i­ly get inter­ac­tives of cor­re­la­tion between tem­per­a­ture and humid­i­ty per­cep­tion. SPECIFICATIONSup­ply Volt­age: 5VTem­per­a­ture Range:-40–80℃ / resolution0.1℃ / error <±0.5℃Humid­i­ty Range: 0–100%RH /  resolution0.1%RH / error±2%RHTem­per­a­ture Response Time: con­di­tion: 1/e(63%)  Min 6s  Max  20sHumid­i­ty Response Rime: con­di­tion: 1/e(63%)25℃, 1m/s in the air <5SInter­face Sequence: VCC,GND,SDOCUMENTSProd­uct WikiMan­u­alSchemat­icLibrary