3 1/2 digits 18mm LCD Range: 1~100,000Lux Accuracy: â?¤10,000Lux, ±(4%rdg+10digit) , >10,000Lux, ±(5%rdg+10digit) Resolution: 1Lux Repeatability: ± 2% Temperature Characteristic: ± 0.1%/ Sampling Time: 0.5 second Photo detector: one silicon photo diode with fliter Dimensions: 130Lx72Wx30H(mm) Over-input: Indication of 1