Surge Scientific · Model RBO-20 · Variable Volume 2-20 uL
RBO RBO-20
Single Channel Variable Volume Micropipette
Volume Range 2-20 uL · Soft-Click Increments · Universal Tipcone
The 2 - 20 uL window covers some of the most-used pipetting workflows in molecular biology, microbiology, immunology, and biochemistry. The RBO-20 delivers it with RBO's high-quality spring plunger mechanism, soft-click increments to prevent accidental volume changes, and a universal tipcone for tip-supply flexibility.
Why The RBO-20?
Variable-volume pipetting at the 2 - 20 uL range demands two things conventional pipettes struggle to deliver simultaneously: precision across the full volume window, and ergonomics that survive long pipetting sessions. Cheap pipettes drift; rigid plungers cause RSI.
The RBO-20 addresses both concerns. 0.8% accuracy and 0.4% CV at the 20 uL nominal meets ISO 8655 requirements, while the high-quality spring mechanism with audible soft-click increments delivers smooth, snag-free volume changes. The large grippy handle and in-built streamlined tip ejector make plate-format work comfortable across full-shift use.
SOFT-CLICK INCREMENTS
RBO's plunger uses a high-quality spring mechanism with audible soft-click increments — preventing accidental volume changes during pipetting.
0.8% AT 20 uL
At full nominal volume, the RBO-20 delivers 0.8% accuracy and 0.4% CV per the catalog spec, verified against DIN EN ISO 8655-2 at Microlit's NABL-accredited ISO 17025 lab.
UNIVERSAL TIP COMPATIBILITY
The universal tipcone accepts most internationally accepted standard tips — eliminating vendor lock-in and giving labs maximum tip-supply flexibility.
LARGE GRIPPY HANDLE
A specially designed large grip combined with the streamlined in-built tip ejector provides great ease of use during long pipetting sessions and comfortable access to bottles and tubes with narrow necks.
"0.8% accuracy, 0.4% CV, soft-click volume increments." — RBO is Microlit's foundational precision micropipette platform — launched in 2014 and trusted by thousands of labs worldwide for molecular biology, immunology, and clinical workflows.
Key Features
- Volume range: 2 - 20 uL
- Increment: 0.02 uL
- 0.8% accuracy at full nominal volume
- 0.4% CV at full nominal volume
- Color-coded volume identification — Grass Green band
- Adjust volume easily by turning the plunger
- Recommended for Molecular Biology, Microbiology, Immunology
- High-quality spring mechanism plunger
- Soft-click sound at every increment (prevents accidental volume change)
- Universal tipcone — accepts standard tip brands
- Large grippy handle for long-session comfort
- In-built streamlined tip ejector
- Holder included for safe, organized storage
- Fully autoclavable at 121°C, 15 psi for 10-15 mins
- ISO 17025 (NABL) calibration certificate included
- Conforms to DIN EN ISO 8655-2 standards
- Recognized with Japanese Good Design Award
- CII Industrial Innovation Award
- Top 50 Most Innovative Companies 2022
- 1-Year Free Replacement Warranty
Ideal Applications
PCR & GENOMICS
PCR plate setup, restriction digests, and ligation reactions with high precision.
ELISA & IMMUNOASSAY
Standard curve preparation and antibody titrations.
BIOCHEMISTRY
Enzyme kinetics setup, protein quantification, and substrate dilutions.
Other Models in the RBO Variable Volume Range
The RBO-20 is one of 9 variable-volume models in the RBO single-channel platform. All share the same handle, soft-click plunger mechanism, universal tipcone, and accessory ecosystem.
Need a fixed-volume version for repetitive identical dispenses? The RBO fixed-volume range covers 15 set volumes from 1 uL to 10 mL:
RBO-20 Accuracy & Precision
| Test Volume | Accuracy ±% | Accuracy ±uL | Precision CV ±% | Precision CV ±uL |
|---|---|---|---|---|
| 20 uL (nominal) | 0.8 | 0.16 | 0.4 | 0.08 |
Error limits in accordance with DIN EN ISO 8655-2, based on the nominal capacity. Calibrated at Microlit's NABL/ISO 17025 accredited laboratory; calibration certificate supplied with every unit.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | RBO-20 |
| Configuration | Single channel variable-volume micropipette |
| Volume Type | Variable |
| Volume Range | 2 - 20 uL |
| Increment | 0.02 uL |
| Channels | 1 |
| Plunger Mechanism | High-quality spring mechanism with soft-click increments |
| Tip Cone | Universal — accepts standard tip brands |
| Tip Ejection | In-built streamlined tip ejector |
| Grip | Large grippy handle for long-session comfort |
| Storage | Holder included for safe, organized storage |
| Autoclavability | Fully autoclavable at 121°C, 15 psi for 10-15 minutes |
| Calibration Standard | DIN EN ISO 8655-2 (NABL / ISO 17025 accredited lab) |
| Certifications | CE, ISO 9001, ISO 13485, ISO 17025 |
| Recognition | Japanese Good Design Award; CII Industrial Innovation Awards; Top 50 Most Innovative Companies 2022 |
| Launched | 2014 (Microlit's foundational precision pipette platform) |
| Warranty | 1-Year Free Replacement |
Surge Scientific Warranty & Support
This instrument is sold through Surge Scientific, your trusted laboratory equipment partner. Our product specialists are available Monday–Friday for assistance. The RBO-20 is backed by a 1-year all-inclusive manufacturer's warranty. Contact us at info@surgescientific.com or reach out directly to our support team at (833) 319-3535 for pre-sales questions, ISO 8655 calibration verification, pipetting protocol guidance, accessory orders, and technical assistance.