| 1. MEASURING RANGE | Auto ranges：0～400kLux/0～40kFc |
| Manual ranges：0～400Lux，400Lux～4kLux 4KLux～ 40kLux，40KLux～400kLux |
| 2. DISPLAY RESOLUTION | 0～999.9LUX: 0.1 |
| 1000～9999LUX: 1 |
| Above 10K Lux: 0.1 |
| 3. ACCURACY | ±3% rdg±8dgts. (10,000Lux) |
| ±4% rdg±10dgts. (10,000Lux) |
| 4. SAMPLING RATE | 2 times per second |
| 5. SPECTRAL RESPONSE | CIE photopic (CIE human eye response curve) |
| 6. PHOTO DETECTOR | Silicon photo-diode with spectral response filter |
| 7. LIGHT OVERLOADING DISPLAY | Display “LO” |
| 8. SPECTRAL ACCURACY | CIE Vλ function f1’≦6% |
| 9. COSINE RESPONSE | f2’≦ 2% |
| 10. VISUAL ALARM | 3-Color LED light alarm |
| Green light ＜ 500 LUX, Yellow light ＜ 1000 LUX， Red light ＞ 1000LUX。 |
| 11. AUDIBLE ALARM | Alarm for 20 seconds, stop for 1 minute, and then cycle the alarm. (The audible alarm defaults to the ON state and can be turned off by user) |
| 12. TEMPERATURE RANGE | -20℃～60℃/-4℉～140℉ |
| 13. TEMPERATURE ACCURACY | ±1.0℃/1.8℉ |
| 14. OVER RANGE INDICATION | LCD displays "-OL-" or "-HI-" |
| 15. HUMIDITY RANGE | 10～100%RH |
| 16. HUMIDITY ACCURACY | 35～75%RH;±5%RH，other；±7%RH |
| 17. AUTO POWER OFF | Turns off after 15 mins (approx.) after inactivity |
| 18. POWER SUPPLY | 3*1.5V AA batteries or USB TYPE-C cable |
| 19. OPERATING CONDITIONS | -20℃～60℃/-4℉～140℉，10～95%RH |
| 20. STORAGE CONDITIONS | -20℃～60℃/-4℉～140℉,≦85%RH |
| 21. DIMENSION / WEIGHT | 225(L)*68(W)*29(H)mm / 279G |
