DS18B20 Waterproof Temperature Probe — 1 m Cable

The DS18B20 inside this stainless-steel tube measures −55 to 125 °C with ±0.5 °C accuracy and sends a digital reading over the 1-Wire bus — so long cables do not affect accuracy and many probes can share one pin. It is ideal for aquariums, fish ponds, water heaters, compost, fermentation and cold-chain monitoring.

Key features

• Waterproof stainless-steel probe with 1 m cable
• −55 to 125 °C, ±0.5 °C between −10 and 85 °C
• 1-Wire digital bus — connect several probes on one pin
• Programmable 9–12-bit resolution

Specifications

What's in the box

• 1 × DS18B20 waterproof probe

Ideal for

• Aquariums and fish farming
• Water heaters and solar collectors
• Soil and compost temperature

Good to know

• Add a 4.7 kΩ pull-up resistor between DATA and VCC (adapter boards include it).