5x40mm Stainless Steel Probe Super Waterproof NTC Temperature Sensor for Aquariums Fish Tanks
The 5x40mm Stainless Steel Probe Super Waterproof NTC Temperature Sensor is a precision-engineered temperature monitoring solution designed specifically for aquatic environments. Featuring a compact 5mm diameter and 40mm length stainless steel probe, this sensor combines durability with high sensitivity, making it an ideal choice for maintaining stable water temperatures in aquariums, fish tanks, and other water-based systems.
Specification of Waterproof NTC Temperature Sensor
Name: Waterproof NTC Temperature Sensor
Resistance at 25℃:2KΩ-500KΩ
B Value: 3435, 3950 or Customized
Tolerance: ±1% ±5%
Wire Type: PVC Wire or Silicone Wire
Probe Size: 5x40mm
Housing Material: Stainless Steel
Connector: Customized
Feature: Super Waterproof
| Name | Glass ntc thermistor |
| Category | NTC temperature sensor |
| Normal Resistance | R25℃: 2KΩ-500KΩ, etc |
| R Toeralce | ±1% ±5% |
| B Value | 3950,etc (3380,3435,3470,3600,3800,3900,3950,4000,4050,4130,4537) |
| Operating Temperature | -50℃ to +300℃ |





Features of Waterproof NTC Temperature Sensor
•High-Quality Stainless Steel Probe – The 5x40mm probe is corrosion-resistant and robust, ensuring long-term reliability even in continuous underwater use.
•Super Waterproof Design – Fully sealed against moisture and submersion, allowing safe and accurate operation in wet or fully immersed conditions.
•NTC Thermistor Technology – Provides fast, precise temperature readings with high sensitivity, enabling real-time thermal monitoring and control.
•Compact and Easy to Install – The slim probe size allows flexible placement in tight spaces such as filter chambers, sumps, or small tanks.
•Wide Compatibility – Works seamlessly with most aquarium controllers, digital thermometers, and temperature regulation systems.
Application of Waterproof NTC Temperature Sensor
•Aquariums & Fish Tanks – Maintains optimal water temperature for freshwater and marine life, including tropical fish, corals, and invertebrates.
•Reptile & Amphibian Enclosures – Suitable for paludariums, turtle tanks, or frog habitats requiring water temperature monitoring.
•Hydroponics & Aquaponics – Helps regulate nutrient solution temperatures for healthy plant growth and fish health.
•Laboratory & Industrial Water Baths – Ideal for precise temperature sensing in water-based experiments or equipment.
•DIY Temperature Control Projects – Can be integrated with Arduino, Raspberry Pi, or other microcontrollers for custom automation systems.




Contact Details:
Andy Wu
Email: andy@tianrui-fuse.com.cn
Tel/Whatsapp: +86 13532772961
Wechat: HFeng0805
Skype: andywutechrich
QQ: 969828363