4x4 Post Holders Woodworking Metal Detectors
203 N. Saginaw
Holly, MI 48442

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Logging Metal Detectors

Hand Held Units

Whole Log Systems:
Shielded Coil System

Under Conveyor Style Metal Detectors:
Standard L240 With A10 Search Coil
High Powered LS345 With A20 Search Coil

Rens L240
Metal Detector

With Shield X Search Coil
Call for price quote


- Fail Safe Electronics Design
- Function Monitor System
- Ten Sensitivity Settings
- Two Control Relays
- Modular Construction
- (plug-in electronic modules)
- Nema 12 Steel Cabinet
- (other NEMA rating cabinets are available)
- Wide Temperature Operating Range
- (-15° C to +55° C Ambient Air Temperature)
- Large Meter Readout
- Manual or Automatic Reset Mode
- Wide Selection of Search Coils
- Power Input Option - 120/240V
- (50-60 Hz, AC 1 Phase)
- Ferrous & Non-ferrous Metal Detection
- Two year Warranty

Shield X A-10 Coil

Fiberglass Section With Search Coil Pocket

Shield X

RENS under conveyor Search Coils are designed for use with belt, vibrating and other custom conveyor systems. The Shield X design allows coil operation in difficult environmental surroundings.

Rugged construction, interior shock proofing and an all weather terminal box combine for long trouble free service.

Sensitivity Table

Sensitisity Table
Maximum detection height of 1" steel ball at high sensitivity setting and in the optimum belt speed range of 100-350fpm.

L240 Control Instrument

RENS Model L240 Control Instrument has proven itself in hundreds of installations in the United States, Canada, and in other countries.

In combination with a RENS Shielded Search Coil it is highly cost efficient and effective in almost all operating environments.

Custom built Fiberglass sections for the Search Coil installation area are also available.


Install fiberglass or wood conveyor section and Search Coil at adequate distance from chipper infeed spout to allow for belt travel after Detector stops drive motor.

Secure Search Coil with lightly driven wood shims at the sides of the coil.

Special Requirements: Conveyor belt must be vulcanized. Metallic fasteners may not be used.

A 50' length of shielded cable is furnished to connect Search Coil to Control Instrument. Control Instrument must be at least three feet away from the Coil.

Trough Belt A10 The L240 can be combined with either the standard A10 Coil or the High Powered A20 Coil depending on sensitivity requirements.

Troughed Belt A20
Troughed Belt A10T and A20T