V1
Up to 80 units per single setting, compared with 60 for the other V-series models shown.
LCR BIO SUPPLY Back to pen collection
LCR reusable pen guide
Compare the Pens
One lineup. Clear differences. Find the pen that fits your research setup.
Important: V1–V4 names are marketplace labels, not a single regulated model standard. Verify the listed mechanism and cartridge fit for the model you choose.
V2
Its open spring-end is designed to shield the needle area without a removable outer cap.
ConviPen or GensuPen 2
Both use automatic delivery mechanisms; GensuPen 2 adds a dedicated trigger and manufacturer-specific cartridge requirement.
V3 or V4
V3 uses a clip cap and updated internals; V4 returns to a V1-style form with a concealed-needle cap.
| Pen | LCR price | Delivery | Maximum setting | Cartridge fit | Design difference |
|---|---|---|---|---|---|
| NovoPen 4Established manufacturer system with clear 60-unit dosing | $59.99 | Manual push-button; audible end-of-dose click | 1–60 units in 1-unit increments | Novo Nordisk 3 mL Penfill cartridge | Robust reusable body; easy-read dose display; NP MAX adapter includedUse only with the compatible Penfill cartridge and pen needles specified by Novo Nordisk. |
| ConviPenAutomatic delivery with a familiar dose window | $59.99 | Automatic, click feedback | 1–60 units | 3 mL cartridge | Blue reusable body; correctable dose selectorConfirm the exact cartridge format supplied with LCR inventory before purchase. |
| GensuPen 2Automatic delivery and a dedicated trigger | $49.99 | Automatic, quiet delivery | 1–60 units | 3 mL short-stopper cartridge | Maroon/burgundy or blue (teal) reusable body; separate triggerConfirm cartridge fit with the exact incoming LCR inventory before purchase. |
| V1Highest single setting in the V-series | $19.99 · set $74.99 | Manual draw-and-push | 1–80 units | 3 mL short-stopper cartridge | Classic capped metal bodySome cartridge formats may require a spacer; verify stopper length. |
| V2Quick handling without removing a cap | $24.99 · 3 for $64.99 · 5 for $99.99 | Spring-assisted single press* | 1–60 units | 3 mL short-stopper cartridge | Aluminum body; open needle-shield endV2 naming varies by seller; verify the incoming mechanism and cartridge fit. |
| V3Capped format with updated internal construction | $19.99 · set $74.99 | Manual draw-and-push | 1–60 units | 3 mL short-stopper cartridge | Aluminum-alloy body; clip capSome versions may leave residual travel or require a spacer. |
| V4A capped, more compact V1-style option | $29.99 · 3 for $79.99 · 5 for $124.99 | Manual draw-and-push | Up to about 60 units | 3 mL cartridge; confirm stopper format | V1-style metal body with concealed-needle capThe V4 label is not standardized; confirm the exact received batch. |
What is consistent
Shared foundation
- All are reusable pen devices rather than medication products.
- All use replaceable 3 mL-class cartridges, but stopper length and manufacturer restrictions can affect fit.
- The listed V-series options use one-unit / 0.01 mL-style increments.
- Complete bundles contain one pen, five empty cartridges and a selected case. The ConviPen starter bundle includes preparation supplies without a case.
Before ordering
Choose by mechanism and verified cartridge fit—not color alone. Use the verified specifications and cartridge requirements for the model you choose. Empty pen hardware and accessories only; no vials, medication or needles are included unless a product listing expressly says otherwise.
Return to pen collectionResearch references
Sources
- Novo Nordisk — NovoPen 4 Instructions for Use
- Novo Nordisk — NovoPen 4 product information
- BIOTON — GensuPen 2 Instructions for Use
- MedEx / Incepta — ConviPen device information
- PreppinPeppers — V1, V2 and V3 hardware comparison
- Peptide Critic — V4 hardware description
- Daro Pep — reusable pen feature comparison
Retailer descriptions conflict on some V-series details. Where sources disagree, this guide flags the point for physical verification instead of treating it as settled.