These digital temperature sensors are an inexpensive, no-fuss way to gather temperature readings - whether you're looking to monitor your hot water tank, aquarium, greenhouse, or just ambient air temperature. They use a 1-Wire interface, which means that multiple sensors can share the same data pin - each sensor comes with a unique 64 bit serial code which will let you read them separately.
The stainless steel casing is waterproof, moisture proof and rustproof. It's attached to 1m of cable so you get a lot of flexibility about how and where you position the sensor.
DS18B20-compatible digital thermometer
1-Wire interface requires only one data line (and ground) for communication - each device has a unique 64-Bit serial code stored in on-board ROM
Measures Temperatures from -55C to +125C (-67F to +257F)
Programmable Resolution from 9 Bits to 12 Bits
Parasitic power mode requires only 2 pins for operation (DQ and GND), eliminating the need for an external power supply.
Alarm function with nonvolatile user-programmable upper and lower trigger points
Stainless steel casing (6x50mm), lead length 100cm
Output lead: Red (VCC) Yellow (DATA) Black (GND)
Packing Includes: 1xDS18B20 Thermocouple with 3 wires