This compact digital hygrometer thermometer provides reliable temperature and humidity readings with an air comfort indicator. - Air comfort indicator: shows three levels (Dry, Comfort, Humid) to help you quickly adjust your humidifier or dehumidifier and maintain comfortable room conditions. - Accurate readings with fast updates: temperature accuracy within ±1°C (±1.8°F) and humidity accuracy within ±5% RH. Measurement range is -20°C to 70°C (-4°F to 158°F) and 10% to 99% RH. Data updates every 10 seconds to help you respond quickly. - Compact and easy to read: size 2.32 x 3.15 inches, lightweight and unobtrusive. Large digits provide easy reading at a glance. The unit uses a back magnetic lid and a battery compartment on the back. - Power and installation: requires 2 x AAA batteries (not included). Battery slot is on the back with a magnetic lid for easy access. - Versatile placement: suitable for room, office, garage, greenhouse, warehouse and other spaces where monitoring temperature and humidity is important. - Humidistat integration: readings can inform adjustments to a humidistat, helping you manage environmental conditions more effectively. Use scenarios - Living room or bedroom: monitor comfort levels to optimize air quality and protect furniture and valuables. - Greenhouse or nursery: keep an eye on temperature and humidity to support healthy plant growth. - Office, garage or storage area: safeguard electronics, documents, and materials from unfavorable humidity levels. Specifications - Temperature range: -20°C to 70°C (-4°F to 158°F) - Humidity range: 10% to 99% RH - Accuracy: Temperature ±1°C (±1.8°F); Humidity ±5% RH - Update interval: every 10 seconds - Display: large digits for easy reading - Size: 2.32 x 3.15 inches - Power: 2 x AAA batteries (not included) - Battery compartment: back with magnetic lid