Product Specifications: Rated Voltage: 1.5 V AC (max, sine wave) Rated Power: 0.2 mW (max, sine wave) Operating Frequency: 500 Hz - 2 kHz Operating Temperature: 0 - 60 °C Operating Humidity: Less than 95 % RH (non-condensation); Hysteresis difference: ≤2% RH Response time: Moisture absorption, ≤20 seconds :≤1%R H/Year Humidity Detection Accuracy: ≤±5%RH Case: PE Plastic Weight: 1g/pc; Package Contents: 6x HR202L Sensor Scope: Temperature and humidity indicator, Temperature and Humidity Gift Watch, Large Environmental Models, Industrial Process Control, Agriculture, Measurement Meter, Split Field Application. [Caution] Please be aware that you must have expertise in order to use this product. We only sell our products, and we cannot provide technical support for our products. The color and size of the actual item may differ slightly from the published images due to lighting and display settings.