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SUNROM ELECTRONICS

Digital Temperature Sensor Probe, Waterproof, DS18B20

Based on reliable temperature sensor chip DS18B20 with cable length of 1 meters.

Digital Temperature Sensor Probe, Waterproof, DS18B20

Sunrom Part# 3902

Available We dispatch same day if ordered by 4PM (excluding holidays), then courier usually takes 2-5 days.
Real Time Availability
Ready Stock: 111 nos.
Factory Leadtime for more quantity: 15 days
Quantity Pricing
Quantity :
Price (Discount%)
1-4 :
Rs.435/- (0%)
5-9 :
Rs.422/- (3%)
10-24 :
Rs.405/- (7%)
25-49 :
Rs.392/- (10%)
50-74 :
Rs.383/- (12%)
75-99 :
Rs.370/- (15%)
100-249 :
Rs.357/- (18%)
250-499 :
Rs.348/- (20%)
500-999 :
Rs.339/- (22%)
1000+ :
Rs.326/- (25%)

Downloads

DS18B20 Datasheet

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 125°C the cable is jacketed in PVC so we suggest keeping it under 100°C. Because they are digital, you don't get any signal degradation even over long distances!

These 1-wire digital temperature sensors are fairly precise (±0.5°C 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.

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. When using with microcontroller put a 4.7k resistor to sensing pin, which is required as a pullup from the DATA to VCC line. 

Cable specs:

  • Stainless steel tube 6mm diameter by 30mm long
  • Cable is 36" long / 91cm, 4mm diameter (1 Meter Long)
  • Contains DS18B20 temperature sensor
  • Three wires - Red connects to 3-5V, Black connects to ground and White is data. 

DS18B20 Sensor Technical specs:

  • Usable temperature range: -55 to 125°C (-67°F to +257°F)
  • 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
  • ±0.5°C Accuracy from -10°C to +85°C
  • Temperature-limit alarm system
  • Query time is less than 750ms
  • Usable with 3.0V to 5.5V power/data

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