GTB2F-E1331 SICK 34 mm NPN Photoelectric Proximity Sensor – Extended Range, Ultra-High Reliability
Overview
- Product Type: Background suppression photoelectric proximity sensor
- Brand: SICK – Germany
- Sensing Distance: 0.5–34 mm
- Light Source: PinPoint blue LED 455 nm, which supports accurate detection of small objects and difficult-to-recognize surfaces
- Output: NPN
- Operational Reliability: MTTFd up to 1,107 years, which suits systems that require high stability
- Protection Rating: IP67, which operates stably in industrial environments with dust and moisture
- Applications: Automation lines, electronics manufacturing, packaging, small part inspection, and applications that need medium sensing range
GTB2F-E1331 is a background suppression photoelectric proximity sensor of SICK. It uses PinPoint blue LED technology 455 nm with a sensing distance from 0.5–34 mm and NPN output. This sensor is a suitable choice for automation applications that require medium sensing range and high accuracy. It is currently available as genuine stock at AUMI – the authorized SICK distributor in Vietnam.
GTB2F-E1331 Product Overview
The GTB2F-E1331 belongs to SICK’s G2 photoelectric sensor series and uses the background suppression principle to detect objects accurately regardless of background surfaces or colors. Compared to the GTB2F-E1311 (16 mm range), the E1331 extends the sensing range to 34 mm, offering greater installation flexibility while maintaining the same compact 14 × 24 × 3.5 mm housing.
The standout feature of the GTB2F-E1331 is its safety-rated MTTFD of 1,107 years – one of the highest reliability ratings in the G2 series. This makes it the preferred choice for 24/7 continuous production environments where unplanned downtime is unacceptable.
5 Key Specifications:
- Sensing range: 0.5–34 mm (max), 0.5–32 mm at 90% remission (DIN 5033)
- Light source: Blue PinPoint LED, wavelength 455 nm, average service life 100,000 hours
- Output: NPN, Dark switching, max. output current 50 mA
- Protection rating: IP67 – dust-tight, water immersion up to 1 m / 30 min
- Operational reliability: MTTFD = 1,107 years, mission time TM = 20 years
GTB2F-E1331 SICK Technical Specifications
| Parameter |
Value |
| Part number |
GTB2F-E1331 | Part No. 1135704 |
| Operating principle |
Photoelectric proximity sensor – Background suppression |
| Max. sensing range |
0.5 – 34 mm |
| Sensing range (standard) |
0.5 – 32 mm (90% remission, DIN 5033) |
| Min. detectable object |
0.1 mm (at 5 mm distance) |
| Light source |
PinPoint LED – blue light, wavelength 455 nm |
| Light spot size |
Ø 13.5 mm (at 30 mm distance) |
| Switching output |
NPN – Dark switching |
| Max. output current |
≤ 50 mA |
| Supply voltage |
10 – 30 VDC |
| Current consumption |
20 mA (no load) |
| Response time |
< 0.625 ms |
| Switching frequency |
800 Hz |
| Repeatability |
0.1 mm |
| Hysteresis |
< 2 mm |
| Connection |
3-wire cable, 2 m, PVC, Ø 2.3 mm |
| Dimensions (W × H × D) |
14 × 24 × 3.5 mm |
| Optics material |
Plastic, MABS |
| Weight |
24 g |
| Housing material |
Plastic, VISTAL® |
| Enclosure rating |
IP67 |
| Ambient operating temperature |
–20 °C to +50 °C |
| Storage temperature |
–40 °C to +70 °C |
| Circuit protection |
Reverse-polarity, interference suppression, short-circuit/overcurrent protected |
| MTTFD (reliability) |
1,107 years |
| DCavg |
0% |
| Mission time (TM) |
20 years |
| Certifications |
CE, cRUus, ACMA, UK, Morocco, China RoHS |
Specifications from official SICK datasheet
GTB2F-E1331 Applications in Industry
With a sensing range of 0.5–34 mm and an MTTFD of 1,107 years, the GTB2F-E1331 is designed for automation applications requiring medium-range detection and the highest operational reliability:
Automotive & Component Assembly:
Detects metal and plastic parts on assembly conveyors with flexible mounting distances of 0.5–34 mm. The MTTFD of 1,107 years ensures continuous, uninterrupted operation in 24/7 production lines.
Logistics & Automated Warehousing:
Detects boxes, pallets, and products on warehouse conveyors. The 800 Hz switching frequency prevents missed detections at high speeds. IP67 suits dusty and humid warehouse environments.
Food & Beverage Packaging:
Verifies the presence of packaging, bottle caps, and cans at distances of 20–34 mm on high-speed lines. IP67 meets hygiene requirements for food production environments.
Quality Control (QC) & Product Sorting:
Detects pass/fail products on automated sorting lines. Background suppression eliminates false triggers from conveyor belts or support structures.
Printing & Paper Handling:
Detects paper edges and printed sheets on industrial printing machines. The blue PinPoint LED enables clear detection across various paper colors and surface finishes.
AUMI has provided the GTB2F-E1331 to automotive, food packaging, and logistics manufacturers across Vietnam, with direct on-site integration and technical support.
GTB2F-E1331 vs GTB2F-E1311 – Which One to Choose?
| Criteria |
GTB2F-E1331 (34 mm) |
GTB2F-E1311 (16 mm) |
| Max. sensing range |
34 mm |
16 mm |
| Hysteresis |
< 2 mm |
< 0.3 mm |
| MTTFD |
1,107 years |
Not specified |
| Weight |
24 g |
25 g |
| Best for |
Medium range, 24/7 high-reliability applications |
Small parts, short range, very low hysteresis |
Note: Choose the GTB2F-E1331 for longer sensing range (up to 34 mm) and top-tier operational reliability (MTTFD 1,107 years). Choose the GTB2F-E1311 for very low hysteresis (< 0.3 mm) in precision small-part detection applications.
Why Choose SICK Sensors from AUMI?
You can purchase the GTB2F-E1331 SICK genuine photoelectric sensor from AUMI – the authorized SICK distributor in Vietnam – with competitive pricing, full warranty, and on-site technical support.
- 100% genuine SICK products, complete CO/CQ documentation, fully traceable
- Full manufacturer warranty, 24/7 technical hotline support
- Nationwide delivery, warehouses in Hanoi and Ho Chi Minh City, on-site integration assistance
Frequently Asked Questions – GTB2F-E1331 (FAQ)
Q1: What is the price of the GTB2F-E1331 SICK sensor?
A: Pricing depends on quantity and order timing. Contact AUMI at +84 917 991 589 for the best quote and recommendation for compatible accessories.
Q2: What industries is the GTB2F-E1331 used in?
A: The GTB2F-E1331 is suitable for: automotive & component assembly, logistics & automated warehousing, food & beverage packaging, quality control inspection, and printing & paper handling.
Q3: What does MTTFD 1,107 years mean?
A: MTTFD (Mean Time To Dangerous Failure) measures the average time before a dangerous failure occurs. An MTTFD of 1,107 years indicates extremely high reliability, making the GTB2F-E1331 suitable for critical 24/7 production applications with minimal risk of unexpected failure.
Q4: Is the GTB2F-E1331 waterproof?
A: Yes. The sensor is rated IP67 – fully dust-tight and protected against water immersion up to 1 m for 30 minutes. Suitable for environments with dust, humidity, or periodic washdown cleaning.
Q5: Where to buy a genuine GTB2F-E1331 SICK sensor?
A: AUMI is the official SICK distributor in Vietnam, guaranteeing 100% genuine products with complete certification. Contact +84 917 991 589 or visit aumi.com.vn.
Contact AUMI to Purchase GTB2F-E1331
AUMI – Official SICK Distributor in Vietnam. Genuine warranty, complete CO/CQ, 24/7 technical support.
📞 Hotline: 0917 991 589 (Hanoi) | 0932 226 100 (Ho Chi Minh City)
📧 Email: [email protected]
🌐 Website: https://aumi.com.vn/
📍 Offices:
- Hanoi: B44, Garden Lot, Viet Hung Urban Area, Long Bien
- Ho Chi Minh City: Floor 2, HS Building, 260/11 Nguyen Thai Binh, Tan Binh District
- Da Nang: Floor 9, PV Bank Building, No. 2 30-4 Street, Hoa Cuong Ward
🔗 Official Datasheet
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