JENGOG · JTR M12 SERIES
JTR M12 inductive proximity sensors
Compare the exact output and mounting style before selecting an M12 proximity sensor. The June 2025 JENGOG catalog lists JTR-12N2DB and JTR-12P2DB as flush-mount, 2 mm, normally-open variants for metal-target detection.
Catalog facts for these M12 variants
| Item | JTR-12N2DB / JTR-12P2DB |
|---|---|
| Detection method | Inductive proximity; metal targets |
| Body and mounting | M12 threaded body; flush mounting |
| Catalog sensing distance | 2 mm for these variants |
| Output | JTR-12N2DB: NPN NO; JTR-12P2DB: PNP NO |
| Supply | 10–30 V DC |
| Connection | 2 m PVC cable |
| Protection | IP67 |
Source: JENGOG sensor catalog, June 2025, PDF p.57 (printed p.51). These values describe the named flush-mount, normally-open variants; other M12 variants in the catalog differ.
Four replacement checks
- Full model and output: compare NPN or PNP and normally open or normally closed with the controller input.
- Flush mounting: confirm how the existing sensor sits in metal and compare the available installation space with the catalog drawing.
- Target and gap: state the metal material, target size and actual sensing gap; the catalog’s 2 mm value does not validate every target.
- Connection: these catalog examples have a cable. If your existing sensor has a connector, send its pinout or a photo before discussing a substitute.
Matching the M12 diameter is only one part of a replacement review. We confirm pricing and current availability per inquiry.
Supplier documentation
The images below are supplier catalog references. Check the exact variant and dimensions before ordering; they are not proof of cross-brand compatibility.

View the supplier catalog page with model variants and dimensions ↗Original JENGOG catalog excerpt, June 2025, PDF p.57 (Chinese).
Send the existing model or machine details
Send the full existing model, quantity and destination country. A nameplate, wiring or mounting photo can help us compare the catalog variant with your installation. If this is a new machine, describe the metal target, sensing gap and controller input instead.
Common questions
Are JTR-12N2DB and JTR-12P2DB the same output?
No. The catalog lists the first as NPN normally open and the second as PNP normally open. Check the controller input before selecting a variant.
Can a non-flush M12 sensor be replaced by this flush model?
Do not decide from diameter alone. Compare sensing distance, mounting position, target and electrical behavior against the full existing model.
Does a 2 mm catalog distance guarantee detection in my machine?
No. Target material and size, installation and actual gap must be reviewed for the application.