---
type: product
schema_version: 1
stock_number: "44266-1"
canonical_url: "https://www.artisantg.com/44266-1/Met-One-GT-321"
json_url: "https://www.artisantg.com/44266-1/Met-One-GT-321.json"
generated_at: "2026-11-07T08:09:56.454Z"
last_updated: "2026-11-06T19:05:57.470-06:00"
---

# Met One GT-321 Handheld Particle Counter

_Summary and Categories are this item's record. The description sections and FAQ are machine-assisted and can contain errors; where they disagree with the record, the record is correct, and where description sections disagree with each other, Details wins._

## Summary

- Manufacturer: Met One
- Model: GT-321
- Condition: Used and in Excellent Condition
- Price: $495.00 USD
- Availability: In stock, 1 available
- Warranty: 1-Year Warranty with 30-Day Return Guarantee
- ITAR restricted: No
- Shipping weight: 2.5 lb, estimated
- Shipping dimensions: 7.5X5X8 in, estimated

## Categories

- Lab & Analytical > Particle Counters (primary)

## Details

### Configuration

- Measuring Principle: Light Scatter Particle Counting
- Light Source: 40 mW, 850 nm Laser Diode
- Particle Sizes: 0.3, 0.5, 1.0, 2.0, and 5.0 µm
- Flow Rate: 0.10 CFM
- Concentration Limit: 3,000,000 Particles per Cubic Foot

### Includes

- Hard Plastic Carrying Case
- Mean Well AC Adaptor, Part Number GS18A09-P1J
- Mini Service Screwdriver

## Images

- <https://www.artisantg.com/itemimages/met_one_gt_321_view1_202611695913.jpg>
- <https://www.artisantg.com/itemimages/met_one_gt_321_view2_202611695913.jpg>
- <https://www.artisantg.com/itemimages/met_one_gt_321_view3_202611695913.jpg>
- <https://www.artisantg.com/itemimages/met_one_gt_321_view4_202611695913.jpg>
- <https://www.artisantg.com/itemimages/met_one_gt_321_view5_202611695913.jpg>
