Glow Writer™ Autoradiography Marking Pen

Phosphorescent fine-point marking pen is ideal for annotating and marking chemiluminescent and isotope-labeled substrates for X-ray film autoradiography.

Delivers an optimum concentration of marking ink that is excited by room light and easy-to-read upon exposure to X-ray film. Contains a short afterglow life of approximately 2 to 3 minutes to guarantee clear visibility upon exposure.