Specifications:
Parameter |
Model 451 – R |
Model – 452 R |
Model – 453-R |
Display |
2 ½ Digit |
2 ½ Digit |
2 ½ Digit |
Range |
400 nm to 700 nm |
400 nm to 700 nm |
400 nm to 700 nm |
Filters |
Glass Filters |
Glass Filters |
Glass Filters |
Accuracy |
± 2 % of FS |
± 2 % of FS |
± 2 % of FS |
Light Source |
6.8 v 3 Amp lamp |
6.8 v 3 Amp lamp |
6.8 v 3 Amp lamp |
Sensor |
Selenium Photo Cell |
Selenium Photo Cell |
Selenium Photo Cell |
Power Supply |
220 VAC |
220 VAC |
220 VAC |
Battery |
– |
– |
9 v Battery 1.5 v x 6 cell |
Filters |
8 Filters |
5 Filters |
8 Filters |
For more info. Kindly contact us.