Sper Scientific 736700 Sling Psychrometer -5°C to 50°C - Professional Whirling Hygrometer for Accurate Humidity & Temperature Measurement - Wet & Dry Bulb Thermometer for HVAC & Weather Monitoring (2)

The Sper Scientific Sling Psychrometer (-5°C to 50°C) is a high-precision instrument designed for accurate relative humidity and temperature measurement. Using a wet and dry bulb thermometer system, this psychrometer provides reliable readings without the need for batteries or digital components.This manual hygrometer is widely used in meteorology, greenhouses, laboratories, and industrial settings where accurate humidity control is essential. Simply wet the cloth wick, swing the psychrometer, and compare the dry-bulb and wet-bulb temperatures using a psychrometric chart to determine humidity levels.Its rugged yet lightweight construction ensures durability and portability, making it a must-have tool for professionals and enthusiasts alike.Key Features:Dual thermometers (wet & dry bulb) for precise measurementsWide operating range from -5°C to 50°CNo batteries required – fully mechanical operationHigh-quality materials for durabilityCompact and lightweight for easy transportInstructions for Use:Prepare the Wet Bulb:Moisten the wick covering the wet-bulb thermometer with clean water.Ensure the wick is fully saturated for accurate readings.Swing the Psychrometer:Hold the handle and rotate the psychrometer for 30 to 60 seconds at a consistent speed.Swinging allows evaporation from the wet bulb, cooling it down.Read the Temperatures:Once stabilized, record the readings from both thermometers.The dry-bulb thermometer shows the ambient air temperature.The wet-bulb thermometer will show a lower temperature due to evaporation.Determine Humidity:Use a psychrometric chart to compare the temperature difference and find the relative humidity.Maintenance & Storage:Keep the wick clean and replace it when necessary.Store in a dry, protective case when not in use.The Sper Scientific Sling Psychrometer (-5°C to 50°C) is a reliable and efficient tool for anyone who needs accurate humidity and temperature measurements in various environments. Order yours today and ensure precision in your weather monitoring, HVAC work, or scientific research!

• ACCURATE HUMIDITY MEASUREMENT – The Sper Scientific Sling Psychrometer provides precise relative humidity readings using the wet and dry bulb temperature method, ideal for professional and industrial applications.
• WIDE TEMPERATURE RANGE (-5°C to 50°C) – Measures temperatures from -5°C to 50°C, making it perfect for a variety of environments, including cold storage, outdoor weather monitoring, and laboratory use.
• DURABLE & PORTABLE DESIGN – Built with high-quality materials, this lightweight yet sturdy psychrometer is easy to carry and ideal for field use in HVAC, meteorology, and agriculture.
• BATTERY-FREE OPERATION – No need for batteries or digital calibration; simply swing the psychrometer to measure humidity using natural evaporation for highly reliable results.
• IDEAL FOR PROFESSIONAL & PERSONAL USE – Perfect weather analysts, scientists, and hobbyists who need a dependable and accurate humidity measuring too.