Sper Scientific, Ltd. Mason's Hygrometer
The Sper Scientific 736740 Mason's Hygrometer is a traditional instrument designed for measuring relative humidity using the wet and dry bulb method. It features two high-quality, spirit-filled thermometers mounted on a durable plastic frame, allowing for accurate and reliable humidity readings in various environments. The device is suitable for laboratory, educational, and field use, providing a simple and effective means to determine atmospheric moisture content. The 736740 model is easy to use, requires no batteries, and includes a water reservoir for the wet bulb thermometer. Its robust construction ensures long-lasting performance and dependable results.