Waterproof DS18B20 Digital temperature sensor Resistor
New
Indicative market price: R66.22
Shipping
Standard courier shipping from R60
R60 Standard shipping applies to orders under R100, in most areas in South Africa. R30 Standard shipping applies to orders over R100. Some areas may attract a R30 surcharge. This will be calculated at checkout if applicable.
Check my rate
Check my rate
Free collection from
Henley on Klip, Meyerton
The seller allows collection for this item and will be in contact with the full collection address once the order is ready.
Ready for collection by Friday, 17 May.
Ready to ship in
The seller has indicated that they will usually have this item
ready to ship within 2 business days. Shipping time depends on your delivery address. The most
accurate delivery time will be calculated at checkout, but in
general, the following shipping times apply:
Standard Delivery
| Main centres: | 1-3 business days |
| Regional areas: | 3-4 business days |
| Remote areas: | 3-5 business days |
Get it now, pay later
Seller
Buyer Protection
Product details
Condition
New
Location
South Africa
Product code
269
Bob Shop ID
613700870
This is a pre-wired and waterproofed version of the DS18B20 sensor. Handy for when you need to measure something far away, or in wet conditions. While the sensor is good up to 125C the cable is jacketed in PVC so we suggest keeping it under 100C. Because they are digital, you don't get any signal degradation even over long distances! These 1-wire digital temperature sensors are fairly precise (0.5C over much of the range) and can give up to 12 bits of precision from the onboard digital-to-analog converter. They work great with any microcontroller using a single digital pin, and you can even connect multiple ones to the same pin, each one has a unique 64-bit ID burned in at the factory to differentiate them. Usable with 3.0-5.0V systems.
What's in the box?
1 x DS18B20 Digital temperature sensor
1 x 4.7k resistor
Resources
Adafruit's Raspberry Pi Lesson: DS18B20 Temperature Sensing
The only downside is they use the Dallas 1-Wire protocol, which is somewhat complex, and requires a bunch of code to parse out the communication. If you want something really simple, and you have an analog input pin, the TMP36 is trivial to get going.
We toss in a 4.7k resistor, which is required as a pullup from the DATA to VCC line when using the sensor.
Cable specs
- Stainless steel tube 6mm diameter by 30mm long
- Cable is 36" long / 91cm, 4mm diameter
- Contains DS18B20 temperature sensor
- If your sensor has four wires - Red connects to 3-5V, Black connects to ground and White is data. The copper wire is soldered to the wire shielding
- If your sensor has three wires - Red connects to 3-5V, Blue/Black connects to ground and Yellow/White is data
DS18B20 Technical specs
- Usable temperature range: -55 to 125C (-67F to 257F)
- 9 to 12 bit selectable resolution
- Uses 1-Wire interface- requires only one digital pin for communication
- Unique 64 bit ID burned into chip
- Multiple sensors can share one pin
- 0.5C Accuracy from -10C to 85C
- Temperature-limit alarm system
- Query time is less than 750ms
- Usable with 3.0V to 5.5V power/data
What's in the box?
1 x DS18B20 Digital temperature sensor
1 x 4.7k resistor
Resources
Adafruit's Raspberry Pi Lesson: DS18B20 Temperature Sensing
