CAVN Rechargeable Pen Light with Pupil Gauge & Ruler | Black 10cm (3.9in)

• Rechargeable Design — This pen light is designed with a built-in rechargeable battery. We equipped with the newest type-C to USB charging cable and you can charge the pen light at any time via power bank, computer, etc. It will save your money to buy batteries repeatedly.
• Two Light Modes — This pen light can switch between white light and warm light modes according to your needs. The white light is suitable for checking nose, mouth, ears or as a flashlight for lighting, the warm light is suitable for checking eyes.
• Durable Material — CAVN pen lights are made of premium aluminum alloy material, making sure these pen lights durable and long-life using. It also comes with a pen cap to prevent damage caused by falling.
• 5CM-Ruler & Pupil Gauge — There are pupil gauge and a 5cm-ruler on the side of the penlight. It is very helpful for you to measure the pupil dilation and length on using these medical penlights.
• Convenient to Use — These reusable nursing pen lights have push-button on/off switches and pocket clip. You can easy to control it and put it in your uniform pocket. If your friends or families are nurses, doctors or nursing students, this pen light is also a good gift choice.

• Charge the Pen Light — Connect the included Type-C to USB cable to the pen light's charging port and a USB power source (power bank, computer, adapter). The indicator light will show charging status.
• Select Light Mode — Press the power button to turn the light on. Cycle through the modes to select either white light for general illumination or warm light for pupil assessments.
• Perform Examination — Use the selected light mode for patient checks. Utilize the integrated pupil gauge and 5cm ruler for accurate measurements during neurological or eye examinations.
• Secure and Store — Use the metal pocket clip to attach the pen light to your uniform for easy access. Store with the protective cap on to prevent damage when not in use.

Typical situations where CAVN Rechargeable Pen Light with Pupil Gauge & Ruler | Black 10cm (3.9in) helps — illustrative scenarios, not customer reviews.