ຮັບສ່ວນຫຼຸດພິເສດຕາມປະລິມານ, ອັບເດດລາຄາຂາຍສົ່ງ ແລະ ການແຈ້ງເຕືອນສິນຄ້າໃໝ່ສົ່ງກົງເຖິງອິນບັອກຂອງທ່ານ.
ໂດຍການສະໝັກສະມາຊິກ, ທ່ານຍອມຮັບ ເງື່ອນໄຂການໃຫ້ບໍລິການ ແລະ ນະໂຍບາຍຄວາມເປັນສ່ວນຕົວ ຂອງພວກເຮົາ.
ເຂົ້າເຖິງຜູ້ຊ່ຽວຊານທີ່ໄດ້ຮັບການຢັ້ງຢືນຂອງພວກເຮົາໂດຍກົງ
• Luminance Y:
Relative spectral sensitivity of digital V(λ) sensor: f1<5.5%
Dynamic range: 10~1,000.000 cd/m2. Accuracy: <5%
Sensitivity: 0.01cd/m2. Repeatability: 0.01cd/m2
• Measuring angle: 1 degree. Measuring distance: 0.7m to infinity
• Color Coordinates x, y, u, v(u’, v’): (Luminance more than 10cd/m2)
Accuracy(x, y): ±0.002(CIE Standard A-source, 100cd/m2)
Repeatability(x, y): ±0.0005(CIE Standard A-source)
• Color Temperature Tc: (Luminance more than 10cd/m2)
Dynamic range: 1350~25000K Sensitivity: 1K
Accuracy: ±20K(CIE Standard A-source, 100cd/m2)
• Temperature effect: -0.1%. No range-changing error
• Refreshing frequency: 1n/s(no less than 10 cd/m2), 1n/3s(less than 10 cd/m2)
• 128×64 LCD display. Data hold function
• RS232 computer interface and software
• Power Supply: 9V Battery, 6V DC adapter
• Size: 270*95*225(mm) (Tripod is option).
