Choosing a used product inspection and checkweighing system can feel like a trade-off between capability and budget. The four conveyor-based metal detectors below span a wide price range, and the right pick depends on your line speed, power service, and whether you need checkweighing in the same pass.
Quick take
If you want a straightforward conveyor metal detector at the lowest listed price, the Fortress Technology Phantom is the most direct option. The ADS ProScan Max II is a mid-range option. The Mettler Toledo Safeline Metal Detector & Checkweigher Combo is the top-priced system here. The Mettler Toledo Safeline Tablex PH-2 offers a Mettler Toledo alternative from a lab environment, but with limited testing history.
Listed price comparison
| Product | Listed Price | Price Bar |
|---|---|---|
| Fortress Technology Phantom Metal Detector 14" L x 6" H Opening | $1,499.99 | |
| ADS ProScan Max II Digital Metal Detector Washdown Conveyor System | $4,499.99 | |
| Mettler Toledo Safeline Metal Detector & Checkweigher Combo Conveyor System | $15,000.00 | |
| Mettler Toledo Safeline Tablex PH-2 Metal Detector and Conveyor | $1,500.00 |
The price spread is wide: the Fortress and Safeline Tablex sit near $1,500, the ADS unit is roughly mid-range near $4,500, and the combined Mettler Toledo system reaches $15,000.
Decision matrix
| If you need... | Consider... |
|---|---|
| A simple detector | Fortress Technology Phantom |
| A more capable detector | ADS ProScan Max II |
| A system for weight and contaminant checks | Mettler Toledo Safeline Combo |
| A Mettler Toledo conveyor detector for a simple setup | Mettler Toledo Safeline Tablex PH-2 |
Product notes
Fortress Technology Phantom Metal Detector 14" L x 6" H Opening - $1,499.99

At the lower end of the price spread, this used Fortress Phantom is a conveyor metal detector with a 14-inch L x 6-inch H opening. It includes sensitivity selection as a feature, and the intended use is industrial. Its model and MPN are both Phantom, which gives you a clear part reference. The country of origin is listed as unknown, which may be a consideration for some buyers. If your line already has a scale and just needs a no-frills metal detector, this is the most budget-conscious of the four.
ADS ProScan Max II Digital Metal Detector Washdown Conveyor System - $4,499.99

The Advanced Detection Systems ProScan Max II is a digital metal detector with a washdown conveyor for food service. It includes an installation guide, owner's manual, and three test samples (ferrous, non-ferrous, and stainless) to help confirm sensitivity. The auto-learn feature allows different settings for different pre-programmed items, and the unit is waterproof and made in the United States. The opening above the belt is 12 inches wide by 3-3/4 inches tall, so it has a smaller vertical opening than the Fortress's 6-inch height. This unit adds practical extras for a food production line.
Mettler Toledo Safeline Metal Detector & Checkweigher Combo Conveyor System - $15,000.00

This is the only unit in this comparison that combines metal detection and checkweighing in one continuous conveyor system. It sits at the top of the price range. It is a Mettler Toledo Hi-Speed V4-RAD checkweigher with a metal detector, built in stainless steel, with touchscreen HMI controls and dual push-bar reject stations. The effective aperture is 10.5 inches high by 7.75 inches wide, and the conveyor width is 2.5 inches. It was previously used for 6 oz and 15 oz containers. The main limitation is the 480V three-phase electrical requirement, which will eliminate facilities that only have standard 115V service. The merchant is EJei2--Tgi.
Mettler Toledo Safeline Tablex PH-2 Metal Detector and Conveyor - $1,500.00

The Safeline Tablex PH-2 sits near the bottom of the price range, just above the Fortress. It's a used Mettler Toledo unit made in the United States, with model number 4500922R and MPN 4500-922R. It was recently removed from a local lab, powers on, and is believed to be working when removed, though further testing was not performed. That uncertainty is the main limitation-you'll want to plan your own sensitivity checks before relying on it in production. The type is Safeline, and it's best suited to a basic detection task.
Final recommendation by use case
- Choose the Fortress Technology Phantom if you want the lowest listed price and a basic detector.
- Choose the ADS ProScan Max II if you need a food-service detector with auto-learn and included test samples.
- Choose the Mettler Toledo Safeline Combo if metal detection and checkweighing must happen in one pass.
- Choose the Mettler Toledo Safeline Tablex PH-2 if you want a Mettler Toledo option and can perform your own testing to confirm it still meets your needs.