A
Anonymous
Apr 01, 2026
Rating: 3/5
Slower than expected
It works, but the response time is slower than bare sensors due to the steel casing.
Description
Stainless Steel Encapsulated Waterproof DS18B20 Temperature Probe Sensor (1820)
Reviews
Attributes
| Brand | - |
| Category | Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals |
| Origin | - |
| Sensor Model | DS18B20 |
| Interface Protocol | 1-Wire Digital |
| Operating Temperature | -55°C to +125°C |
| Measurement Accuracy | ±0.5°C (from -10°C to +85°C) |
| Cable Length | 1 Meter |
| Probe Diameter | 6mm |
| Probe Material | 304 Stainless Steel |
| Supply Voltage | 3.0V to 5.5V DC |
| Ingress Protection | IP68 Waterproof |
| Wiring Configuration | 3-Wire (VCC, GND, Data) |
5 reviews
A
Anonymous
Mar 22, 2026
Rating: 5/5
Arduino compatible
Easy to integrate using the OneWire library. No issues with signal noise.
A
Anonymous
Mar 17, 2026
Rating: 5/5
Perfect for my hydroponics
Works flawlessly with my ESP32 setup. Waterproofing holds up well in the nutrient tank.
A
Anonymous
Feb 27, 2026
Rating: 4/5
Good sensor, stiff cable
Accuracy seems spot on compared to my lab thermometer. The cable is a bit stiff though.
A
Anonymous
Feb 09, 2026
Rating: 5/5
Durable and reliable
Been using this outdoors for months. No corrosion on the steel probe.
5 FAQ
Q: Is the steel probe food grade safe?
A: The 304 stainless steel is generally food safe, but we recommend sealing connections for direct food contact.
Q: Do I need a pull-up resistor?
A: Yes, a 4.7k ohm pull-up resistor between VCC and Data line is required for proper operation.
Q: Can this be fully submerged?
A: Yes, the probe head is IP68 rated for full submersion, but avoid submerging the cable junction.
Q: What is the maximum cable extension length?
A: We recommend keeping extensions under 50 meters for reliable 1-Wire communication.
Q: Does this work with Raspberry Pi?
A: Yes, it is compatible with Raspberry Pi GPIO using a 4.7k pull-up resistor.
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