Testo 540 Handheld Light Meter is a portable light meter great for quick and easy light measuring. The Testo 540 features MIN/MAX functions, data hold, a protective cap for safe storage, and a sensor with comparable spectral sensitivity of the human eye.
Proposition 65 Warning for California Residents: This product can expose you to chemicals including Benzene, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to 
