Hach Thermometer Extension Clamp for the Cold Vapor Test

The Hach 2656200 is a specialized extension clamp engineered for high-precision laboratory setups, primarily serving as a critical component in the Cold Vapor Mercury Test apparatus. It is designed to provide a stable, vibration-resistant interface for thermometers and sensitive glass tubing. It is optimized for diameters between 6.4 mm and 12.7 mm. This range is specifically calibrated for standard laboratory thermometers and semi-micro glass apparatus. This clamp features a "safety-adjust" wing nut system that allows for incremental tension application, preventing the over-compression of fragile glass stems. 

Used, in great condition.