Testo 625 Handheld Hygrometer, ±2.5 %RH Accuracy, +1370°C Max, 100%RH Max

Monitor ambient climates indoors with this hygrometer from Testo. The handheld device takes readings of temperature and humidity for enhanced monitoring and control. The screen is backlit for ease of reading in dark areas. You can quickly and easily control the device thanks to a simple four-button design that lets you flip between readings and modify the display. Its type K probe has a broad temperature measurement range of -200°C to +1370°C for use in demanding applications.

• Humidity measurement resolution of 0.1%RH (relative humidity) for precise readings
• Broad operating temperature range of -20°C to +50°C for use in harsh environments
• Durable ABS (acrylonitrile butadiene styrene) housing material for resistance to impact and wear
• Auto-off function to help conserve battery power during periods of inactivity

• Testing facilities
• Sensitive equipment storage
• Industrial spaces
• Botanical greenhouses
• Food manufacturing plants

Yes, this hygrometer is powered by a 9V battery, so it doesn't require access to an external power source. The battery has a long lifespan of up to 70 hours for long-lasting use. Its light weight of 195g also makes it easy to carry.