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Illustrative purposes only
ST-04
Portable Sensor Tester, Inductive/Magnetic/Capacitive and Photoelectric DC Sensors
⚠️ Reference pricing provided. In case of supply shortages, we will connect you with our trusted procurement partners to ensure your project's continuity.
- Manufacturer: CARLO GAVAZZI
- Product type:
- SVHC: No SVHC (21-Jan-2025)
- For Use With: Inductive, Magnetic, Capacitive and Photoelectric DC Sensors
- Accessory Type: Portable Sensor Tester
| Delivery and price | |
|---|---|
| Units per pack | 50 |
| Price | 132.69 € |
| Current stock | 10+ |
| Lead time | 30 days |
Datasheet
**==> picture [162 x 162] intentionally omitted <==** ## **ST-04 Sensor Tester** ## **Instruction manual** **Manuale d’istruzione Betriebsanleitung Manuel d’instructions Manual de instrucciones Brugervejledning** 使用手册 **UAB Carlo Gavazzi Industri Kaunas** Raudondvario pl. 101 Kaunas LT-47184 Lithuania ## **Table of contents** **1. Structure ....................................................................................................... 3 2. Supply ........................................................................................................... 4 3. Power ON/OFF .............................................................................................. 5 4. NPN/PNP selector ......................................................................................... 6 5. Wiring a sensor ............................................................................................. 7** 5.1 3-wire ............................................................................................................................7 5.2 4-wire ............................................................................................................................8 5.3 2 x 3-wire ......................................................................................................................8 **6. Testing a sensor ............................................................................................. 9 7. Features ........................................................................................................ 10** 7.1 General .........................................................................................................................10 7.2 Dimensions mm [inches] ..................................................................................................10 7.3 Supply ...........................................................................................................................10 7.4 Environmental ................................................................................................................11 7.5 Approval and markings ..................................................................................................11 **2** Rev. 0 - 01.2025 | ST-04 Sensor tester | © 2025 | **CARLO GAVAZZI Industri** ## **1. Structure** **==> picture [121 x 145] intentionally omitted <==** **----- Start of picture text -----**<br> +V<br>+V<br>Output contact 1<br>Output contact 2<br>-V<br>-V<br>)<br>S<br>(<br>SENSOR<br>**----- End of picture text -----**<br> Power indication Output indications NPN/PNP indication Battery indication **==> picture [106 x 13] intentionally omitted <==** **----- Start of picture text -----**<br> NPN / PNP selector<br>**----- End of picture text -----**<br> USB Type-C Power supply Lock/unlock battery cover Reflector = ON/OFF button Iron target Aluminium target **3** Magnet Rev. 0 - 01.2025 | ST-04 Sensor tester | © 2025 | **CARLO GAVAZZI Industri** i ## **2. Supply** **==> picture [15 x 13] intentionally omitted <==** **----- Start of picture text -----**<br> 1<br>**----- End of picture text -----**<br> **==> picture [47 x 24] intentionally omitted <==** **----- Start of picture text -----**<br> 2x<br>6LR61<br>**----- End of picture text -----**<br> **==> picture [15 x 13] intentionally omitted <==** **----- Start of picture text -----**<br> 2<br>**----- End of picture text -----**<br> **==> picture [53 x 38] intentionally omitted <==** **----- Start of picture text -----**<br> USB<br>Type-C<br>5V>2A<br>**----- End of picture text -----**<br> **4** i Rev. 0 - 01.2025 | ST-04 Sensor tester | © 2025 | **CARLO GAVAZZI Industri** ## **3. Power ON/OFF** **==> picture [441 x 190] intentionally omitted <==** **----- Start of picture text -----**<br> OFF ON<br>>3s<br>**----- End of picture text -----**<br> **==> picture [65 x 45] intentionally omitted <==** **==> picture [404 x 263] intentionally omitted <==** **----- Start of picture text -----**<br> Powered<br>by Type-C<br>port<br>Powered<br>by 2x<br>6LR61<br>Blinking:<br>low battery<br>**----- End of picture text -----**<br> **==> picture [71 x 187] intentionally omitted <==** **5** Rev. 0 - 01.2025 | ST-04 Sensor tester | © 2025 | **CARLO GAVAZZI Industri** ## **4. NPN/PNP selector** **==> picture [123 x 197] intentionally omitted <==** **----- Start of picture text -----**<br> NPN<br>>3s<br>**----- End of picture text -----**<br> **==> picture [71 x 188] intentionally omitted <==** **==> picture [99 x 198] intentionally omitted <==** **----- Start of picture text -----**<br> PNP<br>>3s<br>**----- End of picture text -----**<br> **==> picture [81 x 238] intentionally omitted <==** **==> picture [83 x 41] intentionally omitted <==** **----- Start of picture text -----**<br> PNP<br>**----- End of picture text -----**<br> **==> picture [107 x 41] intentionally omitted <==** **----- Start of picture text -----**<br> NPN<br>**----- End of picture text -----**<br> **6** Rev. 0 - 01.2025 | ST-04 Sensor tester | © 2025 | **CARLO GAVAZZI Industri** ## **5. Wiring a sensor** ## **5.1 3-wire** **==> picture [40 x 41] intentionally omitted <==** **----- Start of picture text -----**<br> 1<br>**----- End of picture text -----**<br> **==> picture [40 x 41] intentionally omitted <==** **----- Start of picture text -----**<br> 2<br>**----- End of picture text -----**<br> **==> picture [40 x 41] intentionally omitted <==** **----- Start of picture text -----**<br> 3<br>**----- End of picture text -----**<br> **==> picture [88 x 161] intentionally omitted <==** **==> picture [93 x 163] intentionally omitted <==** **==> picture [88 x 161] intentionally omitted <==** **==> picture [93 x 162] intentionally omitted <==** **V+ V- Output contact** **==> picture [66 x 59] intentionally omitted <==** **==> picture [88 x 161] intentionally omitted <==** **==> picture [41 x 41] intentionally omitted <==** **----- Start of picture text -----**<br> >3s<br>**----- End of picture text -----**<br> **7** Rev. 0 - 01.2025 | ST-04 Sensor tester | © 2025 | **CARLO GAVAZZI Industri** ## **5.2 4-wire** **==> picture [88 x 161] intentionally omitted <==** **==> picture [41 x 41] intentionally omitted <==** **----- Start of picture text -----**<br> >3s<br>**----- End of picture text -----**<br> ## **5.3 2 x 3-wire** **==> picture [88 x 161] intentionally omitted <==** **==> picture [241 x 187] intentionally omitted <==** **----- Start of picture text -----**<br> Sensor 1 Sensor 2<br>PNP + PNP ≤ 100 mA ✔<br>Sensor 1 Sensor 2<br>NPN + NPN ≤ 100 mA ✔<br>**----- End of picture text -----**<br> **==> picture [241 x 246] intentionally omitted <==** **----- Start of picture text -----**<br> >3s<br>Sensor 1 Sensor 2<br>PNP + NPN<br>X<br>Sensor 1 Sensor 2<br>NPN + PNP<br>X<br>**----- End of picture text -----**<br> **8** Rev. 0 - 01.2025 | ST-04 Sensor tester | © 2025 | **CARLO GAVAZZI Industri** ## **6. Testing a sensor** **==> picture [91 x 29] intentionally omitted <==** **----- Start of picture text -----**<br> Sensor<br>**----- End of picture text -----**<br> **==> picture [194 x 375] intentionally omitted <==** **----- Start of picture text -----**<br> Photoelectric<br>target<br>Sensor<br>Inductive<br>targets<br>Magnetic<br>target<br>**----- End of picture text -----**<br> **==> picture [88 x 263] intentionally omitted <==** **==> picture [195 x 285] intentionally omitted <==** **9** Rev. 0 - 01.2025 | ST-04 Sensor tester | © 2025 | **CARLO GAVAZZI Industri** ## **7. Features** ## **7.1 General** |**Ordering number**|ST-04| |---|---| |**Housing material**|ABS| |**Weight**|115g| ## **7.2 Dimensions mm [inches]** **==> picture [136 x 340] intentionally omitted <==** **----- Start of picture text -----**<br> 50 [1,97”]<br>33<br>[1,30”]<br>130<br>[5,12”]<br>**----- End of picture text -----**<br> ## **7.3 Supply** |**Power supply (sensor)**|18VDC,100mA| |---|---| |**Power supply (device)**|Via USB type C: 5V, > 2A<br>Battery: 2x 6LR61(not included)| |**Low battery indication**|LED flashes on low batterylevel| |**Protection**|Batteryreverseprotection| |**Sleep mode**|Automaticallyafter 5 minutes| **10** Rev. 0 - 01.2025 | ST-04 Sensor tester | © 2025 | **CARLO GAVAZZI Industri** ## **7.4 Environmental** |**7.4 Environmental**|**7.4 Environmental**| |---|---| |**Operational environment**|To be used in indoor applications only| |**Degree ofprotection**|IP30| |**Operating temperature**|Operating: 0° to + 40°C(32° to 104°F)| |**Storage temperature**|0° to + 50°C(32° to 122°F)| |**Ambient humidity range**|Operating: 0 to + 90% non condensing| ||Storage: 0 to + 90% non condensing| ## **7.5 Approval and markings** **Approvals** **11** Rev. 0 - 01.2025 | ST-04 Sensor tester | © 2025 | **CARLO GAVAZZI Industri**
Updated at June 9, 2026
Founded in Milan in 1931, Carlo Gavazzi is a globally recognized leader in the design and manufacture of high-quality automation components. For nearly a century, the company has driven technological innovation in the industrial and building automation markets. With ISO 9001-certified production facilities across Europe and Asia, Carlo Gavazzi delivers state-of-the-art solutions tailored for demanding applications, including HVAC, renewable energy, semiconductor manufacturing, and electric vehicle charging infrastructure. Our extensive portfolio of Carlo Gavazzi components focuses heavily on their industry-leading switching and sensing technologies. We carry a comprehensive selection of solid state relays, contactors, and power relays engineered for exceptional reliability and thermal performance. Alongside these robust switching solutions, our range features a wide array of precision sensors, with a strong emphasis on proximity switches and light sensors that are critical for automated manufacturing processes, mobile equipment, and access control systems. Beyond core sensing and switching, the Carlo Gavazzi lineup extends into essential power management, circuit protection, and control devices. This includes highly efficient AC/DC converters, thermal magnetic circuit breakers, and advanced panel instrumentation designed to monitor and optimize energy efficiency. From current sensing transformers to motor starters, engineers consistently trust Carlo Gavazzi to provide competitive, dependable, and forward-thinking components for their most complex automation challenges.
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