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Illuminance Accuracy
CCT Accuracy
CRI Accuracy @ Ra
Flicker Accuracy
Display
Battery
Dimension
Weight
Operating Temperature Range
Storage Temperature Range
± 5%
± 3.5%
± 2.5%
± 5%
2.8" TFT LCD, 240x320 Pixel
AA Battery x4
180*65*30mm ( H x W x D )
250 g ± 20 g
0~35
℃
-10~40
℃
General
Illuminant A @ 2856K
at 20000 Lux
The company reserves the right to change product specifications
without prior notice.
MF250N
Ideal value
90
85
8
0
75
7
0
65
6
0
55
5
0
45
4
0
35
30
25
20
15 1
0 5 0 5 10 15 20
25 3
0 35
4
0 4
5 5
0 5
5
60
6
5
70
7
5
80
85
9
0
Figure 1：Cosine Correction
4.2 General Attributes
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CCT
Correlated Color Temperature
CRI
Color Rendering Index
Lux
Illuminance
λp
The Peak of Wavelength
iTime (ms)
Integration Time of CMOS
Findex
Flicker Index
Fpercent
Flicker Percentage
SVM
Stroboscopic Visibility Measure
Freq (Hz)
The Primary Frequency
Twave (ms)
The Period Time
