Sper Scientific, Ltd. Certified Dial Hygrometer / Thermometer
The Sper Scientific Certified Dial Hygrometer / Thermometer (736920C) is a precision instrument designed to measure both relative humidity and temperature. It features a large, easy-to-read dial with dual scales for humidity (0100% RH) and temperature (30 to 50°C and 20 to 120°F). The unit is certified for accuracy and comes with a certificate of traceability to NIST standards. Its durable metal case and clear acrylic lens make it suitable for laboratory, industrial, or environmental monitoring applications. The 736920C is wall-mountable and requires no batteries, ensuring reliable, maintenance-free operation.