The Testo Pocket Pro 540 light meter gives you the opportunity to address comfort and fatigue concerns due to area lighting, which affect productivity. The Testo 540 has measuring ranges from 0 to 99,999 Lux, 1 Lux (0 to19,999 Lux) and 10 Lux (20,000 to 99,999 Lux) with an accuracy of ±3% compared to the reference.

The Testo Pocket Pro 540 uses a sensor that is as sensitive to light as the human eye. Other features include a hold function for easy readouts and a MAX/MIN function.

This Testo 540 light meter comes complete with protective cap, batteries and calibration certificate.