1. RFND-50A online micro-vibration viscometer---small range viscosity online viscometer, the range range is 0~50~100mpa.s.
Mainly used in the field of solvents, light oils, alcohols, cleaning fluids, low-viscosity silicone oils, oil products, emulsion fracturing fluids, low-viscosity polymers, starch glues, milk beverages.

2. RFND-50B online micro-vibration viscometer---medium range viscosity online viscometer, range range 0--100~5000mpa.s.
The viscosity in this area is widely used, covering various fields, silicone oil, resin, optical fiber, ink, plastic, asphalt, lubricating oil, and fine chemical industry.

3. RFND-50G online micro-vibration viscometer --- large range viscosity online viscometer, the range range is 0-5~50-5000pa.s.
Applied to high viscosity silicone oil, silicone grease, polyurethane resin, hot melt adhesive.

4. RFND-50Y medium-length online micro-vibration viscometer, with a measuring range of 0---10~10000000mpa.s, is used for full-range viscosity measurement of medium temperature at insertion L=500~2000mm.

5. RFND-50G2 online micro-vibration viscometer --- high-range viscosity online viscometer, the range range is 0-500~10000pa·s.
Applied to high viscosity silicone oil, silicone grease, resin, hot melt adhesive.

6. RFND-50M ship online micro-vibration viscometer with a measuring range of 0-50~100mpa.s.
The online viscometer developed for ships can also be used in devices with a viscosity of 0~3000mpa.s and a relatively small installation location.


The rear cover of the display meter is opened to identify the terminal row as the 8P slot, starting from the left
| port | color | port | color |
| 24V DC power supply﹢ | red | Temperature 4-20mA+ | white |
| 24V DC power supply- | green | Temperature 4-20mA- | black |
| 485 communication interface+ | yellow | Viscosity 4-20mA+ | brown |
| 485 communication interface- | blue | Viscosity 4-20mA- | Ash |




