The Spectra Candela IIA- SP Spot Photometer, Model 310 is a high-end illuminace meter designed to yield precise measurements in low light scenarios. The meter consists of hybrid integrated circuitry with its large back-lit LCD display.

The meter is activated by depressing one button with the results being displayed on the easy-to-read LCD. These results read out from 0.1 to 70,000 foot-candles and 1 to 100,000 lux. This range encompasses light levels from low indoor lighting to very bright sunshine. The dual memory stores readings for future use.

For the more demanding user, this meter can calculate contrast ration as well as the average of your given lighting scenario.

By adding the 1° Spot Attachment (PS-305), the meter's capabilities are increased many fold. This easily mountable attachment adds a dimension to the system that other, simpler meters cannot provide.