Key features of the LM-81LX Handheld Light Meter include: - Compact design for one-handed operation - Measurement range: 0 to 20000 LUX, meeting daily requirements - Accuracy: ±5% for precise measurements - Automatic range switching based on environment - Light sensor spectral response compliant with C.I.E standards - Value locking and maximum/minimum recording functions - Suitable for various applications including offices, factories, shopping malls, and outdoor settings