Specifications
| Light transmitance measurement Accuracy | ±1%（0% --- 50%）±2%（50% --- 100%） |
| Light transmitance resolution | 0.0005%（0% --- 10%）0.005%（10% --- 100%） |
| Density Measurement range | 0.000 OD --- 6.000 OD |
| Density measurement Accuracy | ±0.02（0 --- 2.00 OD）±2%（2.00 --- 6.00 OD） |
| Optical Density Resolution | 0.001 OD（0 --- 2.00 OD）0.01 OD（2.00 --- 4.00 OD）0.1 OD（4.00 --- 6.00 OD） |
| Optical hole size | 2mm |
| Peak wavelength of visible light | 380~760nm |
| Weight | Technologies 576g (without battery) |
| Power | 4 * AAA alkalinity dry battery |
| display | 240 * 160 dot matrix LCD |
| Host size | 148*76*26mm |
Packing list
host x1, certificate of conformity x1, manual x1, warranty x1
After-sales instructions
Warranty days: 365 days
If the product quality is caused by non-human factors, the manufacturer will provide 1 year free warranty service (except accessories and consumables);
[Note] For after-sales services outside the Chinese mainland, if the instrument requires repair, the shipping and possible associated taxes shall be borne by the sender. Generation address of the manual: http://en.nbchao.com/p/2143/Specification.html , which is only used by users who purchase commodities from the NBCHAO.