Shipping:
Free Shipping Included
Delivery:
Estimated 2-15 Business Days
Payments:
Credit Card, Check, Cash, PayPal, Apple Pay, Venmo
Returns:
30 Days 100% Money Back Guarantee, Buyer Pays Return Shipping
Description
Antique Klett-Summerson photoelectric colorimeter, a scientific instrument used to measure the concentration of substances in solutions. It uses glass filters to isolate specific wavelengths of light and matched photocells to detect light intensity. The device is calibrated to read directly in percent transmittance or specialized Klett units. Includes a built-in galvanometer and an illuminated logarithmic scale for reading absorbance. Historically used for analyzing colored chemical species in body fluids like blood and urine.
Condition
Gentle wear
Dimensions
17.5" x 6.25" x 8.75" (Width x Depth x Height)