Laser Accuracy
This CRL Merlin TGI Toughened Glass Indicator
is plastic and comes in a leather pouch, including battery charger and detailed
instruction manual. Place MERLIN TGI flat against the glass at eye level,
activate indicator light by pressing "ON" button and look through the viewing
window slightly from the right. When sliding the MERLIN TGI over the surface the
color of the light being reflected by the glass surface will indicate whether
the glass has been toughened or not. MERLIN TGI indicates toughened glass in
double-glazed units as well. MERLIN TGI is equipped with a rechargeable battery.
A charger is included.