# 3D Printer Sensors

> 3D printer sensors: autolevel (3D Touch), filament sensors, mechanical/optical endstops, inductive proximity sensors

- Shop: [Sigmanortec.ro](https://sigmanortec.ro/en/llms.txt)
- Category page: https://sigmanortec.ro/en/3d-printer-sensors
- Category: 3D and CNC printers > 3D Printer Sensors
- Prices: RON, VAT included; prices and stock as of 2026-10-22 01:32 (Europe/Bucharest)

## Products (6)

### Autolevel sensor for 3D printers, 3D Touch
- Page: https://sigmanortec.ro/en/autolevel-sensor-for-3d-printers-3d-touch
- Details: https://sigmanortec.ro/en/llms/p/1493.md
- Price: 97.34 RON
- Availability: In stock; 1-2 zile
- Reference: 9387 · EAN: 5940367317005

3D Touch sensor for adding autolevel functionality to 3D printers, spring-less version with mechanical actuation. Measures the bed at multiple points on the Z axis to keep a constant distance from the nozzle and corrects automatically during printing. Power supply 5VDC, current 15mA, maximum peak current 300mA. 1 meter cables, connection via 3 pins (GND, 5VDC, control signal) and 2 pins (GND, Zmin). Reference 9387.

### 1.75 filament sensor, 3D printer, 1m cable
- Page: https://sigmanortec.ro/en/175-filament-sensor-3d-printer-1m-cable
- Details: https://sigmanortec.ro/en/llms/p/987.md
- Price: 14.81 RON
- Availability: In stock; 1-2 zile
- Reference: 9179 · EAN: 5946517875975

Kit for detecting filament interruption in 3D printers, stops printing and allows resumption after repair. Compatible with 1.75 mm filament, includes detector module and 1 m cables, 3.5-5 V power supply with HIGH/LOW signal output at the supply voltage level. It has 3 wires for power and signal, easy mounting with 3.5 mm holes and insertion direction marked on the housing.
Sensor kit for detecting the interruption of filament supply to 3D printers. The set is composed of the detector module and 1 meter long wires.

### Mechanical endstop SS-5GL2
- Page: https://sigmanortec.ro/en/mechanical-endstop-ss-5gl2
- Details: https://sigmanortec.ro/en/llms/p/166.md
- Price: 5.23 RON
- Availability: In stock; 1-2 zile
- Reference: 33204 · EAN: 5942847692336

Mechanical endstop, ideal for end position detection on 3D printers, CNC and automation. Offers precise and repeatable switching, lever actuation for easy triggering, reliable contacts for stable signal, robust construction and simple mounting on standard brackets.
The SS-5GL2 mechanical limit switch is an endstop type microswitch designed for precise detection of the final position in 3D printers, CNC equipment, and various automation systems. It features an SPDT contact and a roller lever actuator, providing stable, repeatable switching that is easy to integrate into applications where a clear end-of-travel or reference signal is required.

### Mechanical endstop SS-5GL 5A125VAC
- Page: https://sigmanortec.ro/en/mechanical-endstop-ss-5gl-5a125vac
- Details: https://sigmanortec.ro/en/llms/p/167.md
- Price: 7.26 RON
- Availability: In stock; 1-2 zile
- Reference: 33203 · EAN: 5940939074749
- Specifications: Nominal Current: 5 A; tension: NEEDLE; Input Voltage: 125 VAC

Mechanical travel limit switch for detecting travel ends in 3D printers, CNC or automation. Offers precise and repeatable switching, robust lever-actuated contact, load support up to 5A at 125VAC, quick mounting on standard brackets and durable housing for long-term use.
stroke limiter

### Wired optical endstop
- Page: https://sigmanortec.ro/en/wired-optical-endstop
- Details: https://sigmanortec.ro/en/llms/p/168.md
- Price: 8.47 RON
- Availability: In stock; 1-2 zile
- Reference: 22213 · EAN: 5940920792416

Wired optical endstop for 3D printers and CNC, based on the TCST2103 sensor (infrared optical barrier, 3.1mm slot). Features 3 pins (S, V, G), digital output, 5V supply and an 800mm cable with connector included. Compatible with Arduino UNO/Nano/Mega and control boards such as RAMPS 1.4, MKS, Melzi, used for home detection and limiting travel on X/Y/Z axes.

### Inductive proximity sensor, LJ12A3-4-Z/BX, NPN, 6-36V
- Page: https://sigmanortec.ro/en/inductive-proximity-sensor-lj12a3-4-z-bx-npn-6-36v
- Details: https://sigmanortec.ro/en/llms/p/646.md
- Price: 16.24 RON
- Availability: In stock; 1-2 zile
- Reference: 22210 · EAN: 5946206346182
- Specifications: Maximum Input Voltage: 36; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.

Inductive proximity sensor LJ12A3-4-Z/BX, NPN normally open type, for detecting metal objects. Supply voltage 6-36VDC, detection distance 4mm, M12 housing (11.7mm), 1m cable. Compatible with Arduino and other development boards, commonly used for 3D printer autolevel.