Warner Instruments has introduced its WP-10 and WP-16 warmed platforms for 35- and 50-mm petri dishes, and glass and chambered slides. The platforms are constructed of aluminum to control temperatures from 25 to 65 °C and are available in 10- and 16-mm aperture sizes. They are black anodized for corrosion protection and to minimize stray light reflectance. The platforms provide mechanical access from below and offer good heat conductivity. Platform heating is controlled by the company’s TC-124A and TC-144 temperature controllers.