Add leading metal detection technology to flexible checkweighing solutions to minimize space and integrate operation. For the highest level of food safety and integration, a Thermo Scientific Sentinel 3000 or 5000 metal detector with Multiscan technology can be mounted either on the weighframe or on an external infeed conveyor.

Features and benefits

  • Several metal detector model options to optimize system size, sensitivity, and price
  • Wide range of checkweigher belt widths and lengths to fit your production line
  • Dual rejecters separating foreign objects from over/ under weights to facilitate root cause problem determination and action
  • Sentinel metal detector interface can be displayed on the Versa touchscreen making combined set-up and operation easier and faster

5 reasons to consider a combo* system for improved food safety and quality

1. A new combo system upgrades your entire production line:

Food safety and quality go together. So why have new technology for one part of your product inspection solution and old technology for the other? A new combo system gives you the best of both, upgrading your capability for the ultimate in brand protection.


2. Combos save space:

Floor space and line length can be precious in a typical food processing facility. A combo where the metal detector is mounted on the same conveyor as the checkweigher can have up to a 50% smaller footprint than two stand-alone systems.


3. Combos are easier to use:

With the Thermo Scientific VersaWeigh Checkweigher and Thermo Scientific Sentinel 3000 Multiscan Metal Detector harmonized, communications between the metal detector and checkweigher means operation, set-up, program management, statistics, alarms, and rejection can be managed through a single controller for ease of use.


4. Combos provide superior value:

Truly integrated combos share hardware resulting in significant savings compared to purchasing a separate metal detector and checkweigher.


5. Combos are more convenient to service/repair:

Thermo Scientific combos are designed to operate as one system, so troubleshooting is easier and faster. A single point of contact also means you get factory-trained field service engineers for the complete system to diagnose problems and maximize equipment uptime.

*Combos are systems that integrate a checkweigher and metal detector into a single end-of-line inspection point.

Metal detectors available as combos


Sentinel 3000 metal detector

Sentinel 5000 metal detector


Integral to checkweigher frame

Freestanding infeed required



Very high

Case width

250 mm

Starting at 330 mm


Multiscan for high sensitivity and probability of detection

Multiscan for high sensitivity and probability of detection

Flanges to reduce metal free area



View metal detector interface on checkweigher screen



Checkweighers available as combos


VersaWeigh checkweigher

Versa GP checkweigher


Widest application range

Cantilever design

Weight range

10g to 10kg weighing range, high accuracy

10g to 3kg weighing range, ultra-high accuracy


Up to 400 packs per minute throughput

Up to 400 packs per minute throughput

Material handling




Light wash down, IP65

Light wash down, IP65

* Pack rates dependent upon package length, weigh table length and data output/archiving
** For other cleaning and sanitation requirements contact factory

Sentinel 3000 Multiscan Metal Detector for combo units