Performance metrics for the DHT11 indicate a single-bus digital output protocol utilizing a resistive-type humidity measurement component and an NTC thermistor. Standardized testing protocols show a temperature accuracy of ±2°C and a humidity accuracy of ±5% RH. The operational temperature range is limited to 0°C to 50°C, which restricts deployment to indoor environments. Technical specifications list a sampling rate of 1Hz, requiring a polling interval of 5 to 10 seconds in software to prevent internal thermal bias.
The hardware is housed in a basic blue-shell casing without protective membranes, which may lead to drift when exposed to humidity levels exceeding 80%. Power consumption during active measurement is 0.5mA. This module lacks native network connectivity and requires an external microcontroller for data transmission.
Consider the WatangTech BME680 4-in-1 Environmental Sensor if your project requires barometric pressure and gas detection in addition to standard climate metrics.
This device represents an entry-level standard for basic environmental monitoring modules.
