![Tramex Hygro-i2 19mm Hole Liners & Caps - 50 Pack - RHHL50](http://cornell.com.au/cdn/shop/products/RHHL50_{width}x.jpg?v=1612607529)
Tramex Hygro-i2 19mm Hole Liners & Caps - 50 Pack - RHHL50
Product Code: RHHL50
Hygro-i2® Hole Liners and Caps for use with Tramex Hygro-i2® relative humidity sensors. To perform ASTM F2170 in situ RH testing of concrete floors and slabs using a 3/4" drill bit.