You're looking at a multi-dose pen injector that's pretty much designed for research use with things like retatrutide, insulin, or GLP-1 solutions—it's automatic, so no manual plunging needed.
It's good fit if you're running dose-response studies or handling subcutaneous injections for adult subjects, but honestly, it's not meant for anything requiring intravenous delivery or high-viscosity fluids above 5 cP.

The device fits standdard 3 ml cartridges and gives you variable dosing form 0.25 mg up to 2.4 mg, with single increments as small as 0.01 ml; the injection takes 6 seconds or less, and precision is within ±2% (usually that's tighter than most basic pens).
We've had these in stock for a while, and what stands out is the visual and auditory feedback after each injection—it beeps and shows a clear reading, so you don't have to guess if the dose went in.

One thing a buyer might not think to ask: the needle is typically 31G or 32G, which means it's fine enough to minimize tissue trauma, but you'll want to confirm compatibility with your cartridge type before ordering.
Anyway, the qualiy guarantee period is 5 years, and it comes in a simple carton box—no logo printing, but customiztion is acceptable if you need it.