Czujnik temperatury PT100 sonda nierdzewna IP65 3 przewód silikonowy 100cm

PT100 Temperature Sensor with a 100 cm Lead

The PT100 sensor is a reliable platinum resistance thermometer (RTD) with PTC characteristics, whose resistance increases proportionally with temperature. The sensing element is housed in a durable, rolled stainless steel casing. This ensures that the assembly is fully protected against moisture and mechanical damage. The 1-meter-long silicone cable provides convenience and flexibility during installation.

The sensor features a 3-wire configuration, which significantly reduces the impact of the cable’s own resistance on the final measurement result, ensuring higher accuracy. The probe can be connected as a 2- or 3-wire system. The sensor is ideal for electronic projects using microcontrollers such as the ESP8266, ESP32, Arduino, or Raspberry Pi—however, it requires connection via a dedicated RTD converter module (e.g., MAX31865), because, unlike digital sensors, it cannot be connected directly to a GPIO pin.

Key Technical Features

• Sensing element used: PT100
• Accuracy class: B
• Measurement tolerance: ±(0.3 + 0.005t)
• Nominal resistance (at 0°C): 100 ohms
• Temperature measurement range: -50°C to +200°C
• Probe housing dimensions: diameter 5 mm, length 50 mm
• Measurement current: ≤ 1 mA
• Connection type: 3-wire (cable cross-section: 3x 0.22 mm²)
• Protective features: rolled stainless steel housing, silicone cable, IP65 protection rating

Benefits of choosing this model

• High measurement precision—the 3-wire design and accuracy class B effectively eliminate errors caused by wire resistance.
• Wide operating range—measurements from -50°C to 200°C make it suitable for both residential and industrial applications.
• Durability and resilience—the steel housing ensures trouble-free operation while protecting the internal sensor.
• Moisture resistance—IP65 protection rating allows for safe use in harsh environmental conditions.
• Easy integration—the flexible silicone cable makes it easy to route wiring in tight spaces.

Example Applications

• Modern heating, ventilation, and air conditioning (HVAC) systems.
• Building automation and smart temperature management systems.
• Precise monitoring of conditions in industrial processes.
• Custom measurement stations in IoT systems using microcontrollers for Arduino or ESP32.
• Monitoring of refrigeration equipment and weather stations.