Tramex Hygro-i2 Hole Liners 16mm - RHHLSRTramex Hygro i2 16mm Hole Liners are specially designed for use with Tramex Hygro i2 relative humidity probes. These liners and caps are essential components for conducting BS8201, 8203, and 5325 in situ RH testing of concrete floors and slabs, ensuring accurate and consistent readings. Each hole liner provides a secure fit and stable environment for the probe, helping maintain proper test conditions throughout the measurement period. These liners are