Wave length: about 589.5nm
Metal table size: 37mm×68mm
Temperature: Room temperature: 5-35℃
Humidity: ≤75%, no acid, alkali and other corrosive gases in the room
$484.85
| Type | Gem & jewelry tools |
| Testing scale | 1.35-1.85 |
| Accuracy | 0.002 |
| Color | White |
| Weight | 33g |
| Size | 140mm*42mm*95mm |
| Warranty | One year |
| power supply | Two No. 7 batteries or externally connected wide voltage power supply adapters (input voltage 100V-240V, output voltage DC 3V) |
| Eyepiece | diameter of 32mm, with amplification function(4X) |
| Prism size | 14mm×5mm |
| Prism type | Synthetic cubic zirconia (CZ) testing prism |
JYBS(Jinyuanbao) is a 35-year-old company with a full range of jewellery tools, offering professional services and a perfect quality control system.
Only to be a trustworthy tool home for jewellery masters at home and abroad.
The products are exported to 40+ countries and regions with over 30,000 products and the export value reached US$6.7 million in 2021.
Since 1988, Jinyuanbao is a professional jewellery tools and equipment supplier based in Guangzhou, China.
We offer a wide range of jewellery tools and equipment such as diamond testers, punching machines, polishing machines, setting tools, jewellery cutting tools, abrasive tools,
polishing tools, ring setting and stretching machines, faceting machines, engraving machines, casting machines, and measuring instruments.
We have supplied many prestigious American and European customers with products of consistent quality.
Our products are popular with our customers due to their superior quality and affordable prices.
