TN-10 light meter, which measures lux with an analog meter, with included sensor and case. No batteries required. - Model: TN-10 - Accessories: Case, sensor - Measurement range: 0-100000 (lux) - Design: Analog meter Thank you for viewing. Uchita's lux meter "TN-10" is an analog illuminance meter that operates without power. The measurement range can be switched in three stages: 1000, 10000, and 100000 lux. High-precision measurement compliant with JIS AA class is possible. It has obtained type approval under the Measurement Law. Operation has been confirmed and it is working properly.