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Thermo Scientific Invitrogen Countess II
$8,000
(New) factory MSRP
introduced in 2012
Buy at:
$2,423.00
equilibrium price ; fetched May 15, 2025
Sell in 30 days for $1,453.80 on Westrn
Delivers with UPS between May 25, 2025 - May 30, 2025
About the Thermo Scientific Invitrogen Countess II
Description:
Countess II automates trypan-blue viability assays, delivering live/dead counts and size distributions in ~15 s. A 5 MP CMOS camera, 2.5× objective and auto-lighting algorithms capture crisp bright-field images; onboard software gates debris and exports CSV reports to USB. The 9 × 5.5 × 9 in, 8 lb enclosure needs only mains power and a disposable dual-chamber slide—no dedicated PC or messy staining workflow. Users can store nine profiles, tweak circularity/brightness thresholds and review annotated images on the capacitive touchscreen.
Economic Advantage:
Manual hemacytometry ties up skilled staff, and flow cytometers overshoot most budgets. Countess II slots between: a one-button count costs pennies per slide and slashes operator time by 80 %. Faster turnaround boosts cell-culture decision making, and the broad 10 ⁴–10 ⁷ cells mL⁻¹ range removes dilution guesswork, cutting media waste.
Price History
Specifications:
| Footprint (W × D × H) | 9 × 5.5 × 9 in |
|---|---|
| Weight | 8 lb |
| Power input | 100–240 VAC, 0.58 A, 50/60 Hz |
| DC supply | 12 V DC, 2 A |
| Operating temp. | 40–90 °F (4–32 °C) |
| Humidity limit | < 80 % RH (non-cond.) |
| Processing time | ≈ 15 s per sample |
| Sample volume | 10 µL |
| Conc. range | 1 × 10⁴–1 × 10⁷ cells mL⁻¹ |
| Cell diameter range | 7–60 µm (cells) |
Included Accessories:
You order with Westrn will include:
- (1) Hospital grade power cord
Unless, indicated otherwise, or in cases where accessories are single use disposable, these accessories will arrive in "pre-owned" condition.
Sales Data
Includes all sales of the Thermo Scientific Invitrogen Countess II within the last 12 months on the Westrn platform. Amounts do not include taxes or fees found in checkout subtotal.
No sales history available.