TRIPLETT LCD Display Specialty meter

LCD Display Specialty meter. Measures the transmittance of light in the safety testing of tinted windows and other materials. 3-digit 999-count LCD. 0 to 100% transmittance range. 0 to 1/4" (0 to 6.5mm) thickness range. Power on self-calibration. Automatic data hold locks the reading on the display for 30 seconds before auto-shutdown. Continuous Use function overides auto-shutdown. Low battery indicator. Auto-shutdown conserves battery life