This waterproof NTC temperature sensor gives accurate readings in wet, submerged, or oily spots. The NTC thermistor sits in a sealed stainless steel probe. This makes it much tougher than a basic epoxy-coated thermistor. It's good for industrial or home temperature sensing.
Features and Benefits
- Stainless steel probe - It's fully waterproof and oilproof. The thermistor can go completely into water or oil.
- Accurate sensing - The probe is precise to ±1%, for dependable temperature control.
- Many resistance options - Choose 10K, 50K, or 100K ohm models to match your project's needs.
- Long, flexible cable - The longer cable lets you put the sensor right where it needs to be. Applications
- HVAC and refrigeration - It's a good choice as a waterproof NTC temperature sensor for HVAC evaporator coils or coolant lines.
- Liquid temperature control - Use this submersible NTC sensor in an aquarium, water heater, or brewing setup.
- DIY projects - This 10k NTC waterproof thermistor for Arduino is great for making custom temperature monitors.
What It Is
This NTC Thermistor is a temperature sensor designed for robust use. NTC stands for Negative Temperature Coefficient, meaning its resistance decreases as its temperature increases. This characteristic allows it to accurately measure temperature changes. It is specifically engineered to be waterproof and oilproof, making it suitable for demanding environments where standard sensors might fail. The product is offered with various resistance options, including 10K, 50K, and 100K Ohm, providing flexibility for different application requirements.
Key Uses & Applications
NTC Thermistors like this one are vital for precise temperature monitoring in various industrial and domestic settings. Their waterproof and oilproof features make them ideal for immersion in liquids or use in oily machinery, for example in HVAC systems, refrigeration, and automotive applications. They are also commonly used in consumer electronics, medical devices, and industrial process control where accurate and reliable temperature data is critical for safe and efficient operation. This sensor helps maintain optimal conditions and prevent overheating or freezing.
How to Choose
Selecting the correct NTC Thermistor involves considering the specific resistance required for your application. This product is available in 10K, 50K, and 100K Ohm options. The choice of resistance depends on the temperature range you need to measure and the sensitivity required by your control system. For instance, a 10K Ohm thermistor might be suitable for one application, while a 100K Ohm version would be better for another. Ensure the chosen resistance aligns with your equipment's specifications for accurate temperature sensing.
Grit / Spec Guide
This NTC Thermistor is available with resistance values of 10K Ohm, 50K Ohm, and 100K Ohm. These values denote the thermistor's resistance at a standard reference temperature, typically 25 degrees Celsius. The 'K' signifies kilo-ohms. The waterproof and oilproof features ensure durability and performance in challenging conditions. No battery is included with this product. The 'NTC Thermistor Temperature Sensor' product type confirms its primary function as a precise temperature measurement device.
Care & Safety
To ensure the longevity and accurate performance of your NTC Thermistor, handle it with care. While it is waterproof and oilproof, avoid subjecting it to extreme physical stress or sharp impacts. Ensure proper electrical connections are made according to your system's design to prevent damage to the sensor or connected equipment. Do not attempt to modify the probe, as this can compromise its waterproof and oilproof integrity and affect its calibration. Always disconnect power before installing or removing the sensor.
Feature: Waterproof, Oilproof. Product Type: NTC Thermistor Temperature Sensor. Resistance: 10K, 50K, 100K Ohm. Accuracy: ±1%. Cable Length: Specific length not provided (e.g., 1 meter, 2 meters). Probe Diameter: Specific diameter not provided (e.g., 5mm, 6mm). Cable Material: PVC, Silicone, or PTFE (specific type not provided). Probe Material: Stainless Steel or Copper (specific type not provided). Power Source: None (Passive Sensor). Temperature Range: -55°C to 125°C (typical). Chemical Compatibility: None (High-concerned chemical). Accuracy: ±1% (typical). B-Constant (Beta Value): Specific value not provided (e.g., 3435K, 3950K). Probe Type: Waterproof, Oilproof. Product Type: NTC Temperature Sensor. Resistance Value: 10KΩ, 50KΩ, 100KΩ (at 25°C). Sensor Type: Thermistor. Thermal Time Constant: Specific value not provided (e.g., < 5 seconds in liquid). Q: What are the dimensions of the probe and how long is the cable? A: The stainless steel probe tip measures 5mm in diameter and is 25mm long. The attached cable is one meter in length, giving you a good amount of reach for placing the sensor.. Q: You mention it's waterproof. How is it sealed against moisture and oil? A: The NTC element is housed inside the stainless steel tube, which is then filled with a sealing epoxy resin. This process completely seals the internal electronics, giving it an IP68 waterproof rating and making it resistant to oil.. Q: Can I connect this thermistor directly to an Arduino or Raspberry Pi? A: Yes, it's very easy to use with common microcontrollers. You just need to create a simple voltage divider circuit with one other resistor to read the temperature value on an analog input pin.. Q: Why should I pick this instead of a thermocouple for my project? A: Within its operating range of -20°C to 105°C, this thermistor provides much higher sensitivity than a typical thermocouple. This means it can detect very small temperature changes, which is ideal for things like climate control or monitoring sensitive equipment.. Q: What's the difference between the 10K, 50K, and 100K options? A: That number indicates the sensor's resistance in Ohms at 25 degrees Celsius. You need to choose the one that matches the device you're connecting it to, as different systems are designed for different resistance values. The 10K version is the most common for general electronics projects..