In high humidity or liquid contact scenarios such as food processing, sewage treatment, outdoor equipment, and ship engineering, ordinary temperature probes are often damaged or have distorted data due to water seepage. The waterproof temperature probe, with its IP68/IP69K protection level and corrosion-resistant structure, has become a key technology for solving the pain points of temperature measurement in humid environments. This article will analyze the core design, industry applications, and selection points of waterproof probes to help you achieve stable and reliable temperature monitoring.
1、 The core value of waterproof temperature probes – resisting moisture erosion
The core mission of waterproof temperature probes is to combat water environmental threats. By using a stainless steel 316L shell, a double-layer sealing structure (such as epoxy resin encapsulation+silicone sealing ring), and a professional waterproof cable interface, long-term immersion without water leakage (compliant with IP68 waterproof standards) is achieved. This type of probe is not only suitable for conventional humidity environments, but also capable of handling harsh scenarios such as temperature measurement in aquaculture ponds, food cleaning equipment, and outdoor weather stations that come into direct contact with liquids, completely solving industry pain points such as probe water short circuits, electrode corrosion, or measurement drift.
2、 Dual guarantee of waterproofing and precision
A truly waterproof temperature probe needs to balance waterproof performance and temperature measurement accuracy:
Materials Science: Using food grade 304/316 stainless steel probes (compliant with FDA certification), resistant to acid and alkali corrosion, suitable for food grade temperature monitoring such as beer fermentation tank cleaning and sauce cooking pots;
Sealing process: laser welding sealing combined with pressure resistant and waterproof joints, ensuring that it does not fail when reaching depths of up to 10 meters underwater (such as deep well water temperature monitoring) or high-pressure spray environments (such as automotive parts cleaning lines);
Signal stability: Built in waterproof PT100 sensor or waterproof NTC probe, combined with anti-interference shielding wire, maintains high accuracy of ± 0.5 ℃ in humid environments, avoiding signal attenuation caused by humidity.
3、 Core application scenario – rigid demand field in water environment
Food and Beverage Industry
CIP cleaning system: Waterproof temperature probe monitors the temperature of high-temperature acid/alkali solution in real time to ensure cleaning effect;
Liquid food canning line: directly immersed in syrup and milk for temperature measurement, with materials that meet food grade hygiene standards.
Water Treatment and Environmental Protection
Temperature monitoring of sewage tank: corrosion-resistant probes are used to deal with sulfur-containing wastewater and support optimization of biochemical reactions in sewage treatment;
Aquaculture constant temperature system: IP68 waterproof probe is placed in the fish pond for a long time and linked with heating equipment for temperature control.
Industrial Manufacturing and Outdoor Equipment
Coolant circulation monitoring: Real time feedback of cutting fluid temperature for machine tools to prevent overheating and shutdown;
Marine engine temperature measurement: resist seawater salt spray corrosion and ensure navigation safety;
Outdoor power cabinet anti condensation: Monitor the humidity and temperature inside the cabinet and trigger the dehumidification device.
Livelihood and scientific research
Swimming pool heating control: Waterproof temperature sensor embedded in the pool wall to accurately regulate water temperature;
Marine scientific research equipment: Deep sea pressure resistant waterproof probe collects data in low-temperature sea areas.
4、 Selection guide: Waterproof probes that match the scene
Choosing a waterproof temperature probe requires attention to four major dimensions:
Waterproof grade:
IP67: splash proof (such as food processing countertops)
IP68: Long term underwater work (such as water tanks, ponds)
IP69K: Resistant to high temperature and high pressure flushing (such as sterilization of pharmaceutical equipment)
Corrosion resistance:
Selecting Hastelloy Alloy Probe for Chemical Environment
Titanium alloy casing is required for seawater applications
Temperature and accuracy:
Low temperature liquid measurement (such as cold storage) requires anti icing design
Select high-temperature and waterproof probe for steam environment (150 ℃+)
Installation methods: Threaded fixed type (reactor, pipeline), magnetic portable type (temporary tank temperature measurement), cable direct insertion type (deployed in narrow spaces)
5、 Maintenance and Upgrade: Extend the Lifespan of Waterproof Probes
Although waterproof temperature probes are durable, they still require scientific maintenance:
Regular calibration: detect accuracy drift every 6 months, especially for medical sterilizers or laboratory water tanks;
Interface protection: Use waterproof junction boxes for exposed cable joints to avoid water seepage points;
Technological upgrade: The new generation of wireless waterproof temperature probes can transmit data through Bluetooth/LoRa, reducing the risk of sealing failure caused by wall wiring, and are suitable for distributed water tank temperature measurement (such as large farm water tower groups).
Waterproof temperature probe is a cornerstone technology for temperature measurement in humid, corrosive, and outdoor environments. Whether it is ensuring food production safety, optimizing sewage treatment efficiency, or maintaining key equipment on ships, selecting high protection level probes that match the scene can achieve zero fault temperature monitoring. Looking for IP68 certified stainless steel probes or customized waterproof solutions? Please contact us to obtain free waterproof structure design solutions and industry application case libraries!
