Developed for through-wall mounting, all units have a bi-metal coil movement and glass lens with a 0.25″ / 6.35 mm diameter stainless steel stem. The stainless steel, back flange bezel has three, equally spaced mounting holes 0.150″ / 3.81 mm diameter on a 2.9″ / 74 mm diameter bolt circle.
Cooper / Dial Thermometers / Industrial & Scientific / Measure & Inspect / Temperature & Humidity / Test