Portable Jewellery Diamond Tool With built-in Battery Gemological GIA Testing Instrument Gem Refractometer
Portable Jewellery Diamond Tool With built-in Battery Gemological GIA Testing Instrument Gem Refractometer
Description:
Professional optical design, shadow boundary super straight and clear; Frosted Aluminum alloy table, corrosion resistant, easy to clean;Built-in quasi-monochromatic LED light source;
With a bottle of 2ml refractive index Liquid (1.78±0.005), can placed in the slot of the refractometer lid, unique design of the bottle, overcome the traditional oil bottle is fragile, easy to spill, difficult to control the drop and other defects, use more safe, economic, convenient;
With a polariscope,polariscope can be stuck in the special bracket at side of the refractometer,effectivetly avoid the loss of polariscope,easy to carry.
Test conditions: Temperature: room temperature: 5-35℃, humidity: ≤75%, no acid, alkali and other corrosive gases in the room;
Specification:
| Testing range | 1.35-1.85 |
| Accuracy | ±0.003 |
| Power | AAA batteries or 3V DC |
| Color | Black |
| Testing table | Frosted aluminum alloy table |
| Light | Monochromatic LED light |
| Weight | 1KG |
| Size | 120mm*42mm*80mm |
| Testing prism | Synthetic cubic zirconia |
| Power supply | Two No. 7 batteries or externally connected |
| Wide voltage | Input voltage 100V-240V, output voltage DC 3V |
| Eyepiece | Diameter of 32mm, with amplification function(4X) |
| Prism size | 14mm×5mm |
| Metal table size | 37mm×68mm |
| Minimum scale | 0.01 |
| Warranty | One year |
| Package | One set in a gift color box |
