Dual range light meter reads in Lux and Foot Candles. Zero reference settings for tungsten, fluorescent, daylight, and mercury light sources. NIST traceability certificate supplied. Photo diode and color correction filter provides cosine and color corrected measurements.
100mL. Polymethylpentene cylinders are autoclavable. Withstand up to 120[degree]C continuous use or 170[degree]C for short periods. Graduated in 1mL increments. ISO 6706 certification. Not resistant to strong oxidizers, some hydrocarbons, and chlorinated solvents.
Number, Measurement and Space, module establishes equivalence of sets by a one-to-one exchange of objects. Eg Upsetting equivalance (destroying conservation of numbers) by adding one object to a set, or taking one away, helps introduce vocabulary for comparing quantity
25mL. Polymethylpentene cylinders are autoclavable. Withstand up to 120[degree]C continuous use or 170[degree]C for short periods. Graduated in 0.5mL increments. ISO 6706 certification. Not resistant to strong oxidizers, some hydrocarbons, and chlorinated solvents.