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Product guide

Lonely Binary DS18B20 3-Pack Temperature Sensors, 1 m Probes

Lonely Binary DS18B20 sensors are supplied as a three-pack with breakout boards for microcontroller temperature monitoring. The listing claims waterproof stainless-steel probes, 1-Wire communication and ±0.5°C accuracy from -10°C to +85°C. Its computer-hardware fields also list a 5X86 processor, which is inconsistent with the sensor product and should not be treated as a confirmed feature.

At a glance

  • Three DS18B20 probes and three breakout boards are listed, with a built-in pull-up resistor on each board.
  • The 1-Wire interface is described as allowing multiple sensors to share one data line.
  • The stated ±0.5°C accuracy applies only within -10°C to +85°C, not across the full claimed temperature range.
Price
$25.49Save 15%

Reference price: $29.99

Price checked: 13 Nov 2026

View offer

Pros and cons

Pros

  • Three sensor-and-breakout sets can support monitoring at several points.
  • The listed breakout boards have built-in 4.7kΩ pull-up resistors, reducing the need for a separately supplied resistor.
  • The stated 3.0V to 5.5V operating range suits a range of embedded electronics setups.

Technical specifications

11 specifications
Identity
BrandLONELY BINARY
ModelSS-DS18B20-1M[X3]
Connectivity and controls
Connection listed3-Pin (VCC, GND, DATA) via Breakout Board
Computing specifications
Processor listed5X86
Sensor and interface claims
Sensor typeDS18B20
Probe length1-meter
Interface1-Wire digital interface
Temperature range-55°C to +125°C
Operating voltage3.0V to 5.5V
Pull-up resistor4.7kΩ
Compatibility claims
PlatformsArduino, Raspberry Pi, ESP32, ESP8266, STM32, Microcontroller Boards

What to know before buying

Listing details to confirm

The listing's sensor-specific title and features conflict with unrelated computer-hardware fields, including a 5X86 processor. Treat that processor entry as unconfirmed and verify the selected listing's sensor configuration before purchase. The waterproof and accuracy claims are manufacturer statements, not independently verified here.

What’s in the box

Included
  • 3 × Breakout Boards with built-in pull-up resistors
  • 3 × DS18B20 temperature sensors with 1 m cable

Who is it for?

A good fit for

  • Arduino, Raspberry Pi, ESP32, ESP8266 or STM32 projects needing multiple wired temperature-sensing points.
  • Aquarium, hydroponics, HVAC or brewing monitoring setups where the stated probe length and temperature range fit the application.

Less suited to

  • Buyers needing a documented accuracy of ±0.5°C outside -10°C to +85°C.
  • Projects requiring wireless sensor connections, since the listed connection is a three-pin breakout-board connection.
Lonely Binary DS18B20 3-Pack Temperature Sensors, 1 m Probes · photo 2
Additional product photo 2

Customer reviews on Amazon

5 / 5 · 1 ratings
  • 5 stars100%100%
  • 4 stars0%0%
  • 3 stars0%0%
  • 2 stars0%0%
  • 1 star0%0%

The supplied rating data shows a single five-star rating. That very small sample offers little basis for judging reliability, accuracy or long-term use, and includes no written feedback to explain the rating.

Frequently asked questions

How many sensors and breakout boards are listed?

The package list specifies three DS18B20 temperature sensors with 1 m cables and three breakout boards with built-in pull-up resistors.

What accuracy does the listing claim?

It claims ±0.5°C accuracy from -10°C to +85°C. That accuracy claim does not extend to the full stated -55°C to +125°C range.

Can the sensors share a data line?

The listing describes a 1-Wire digital interface that allows multiple sensors to use a single data line. Confirm your board and wiring requirements for the intended setup.

Is the listed 5X86 processor part of the sensor kit?

The 5X86 entry appears among unrelated computer-hardware fields and conflicts with the sensor listing. It is not a confirmed sensor-kit specification.

Lonely Binary DS18B20 3-Pack Temperature Sensors, 1 m Probes · photo 3
Additional product photo 3

Alternative options

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