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Overview
The DS18B20 digital thermometer provides 9-bit to 12-bit Celsius temperature measurements and has an alarm function with nonvolatile user- programmable upper and lower trigger points. The DS18B20 communicates over a 1-Wire bus that by definition requires only one data line (and ground) for communication with a central microprocessor. It has an operating temperature range of -55°C to +125°C and is accurate to ±0.5°C over the range of -10°C to +85°C.
Each DS18B20 has a unique 64-bit serial code, which allows multiple DS18B20s to function on the same 1-Wire bus. Thus, it is simple to use one microprocessor to control many DS18B20s distributed over a large area. Applications that can benefit from this feature include HVAC environmental controls, temperature monitoring systems inside buildings, equipment, or machinery, and process monitoring and control systems.
Specification
Supply voltage: 3.0 – 5.5V
Supply current: 1 – 1.5mA
Accuracy: ± 0.5 (-10°C to +85°C), ± 2 (-55°C to +125°C)
Resolutio bit: 12bit
Package type: TO-92
Pins: 3
Operating temperature range: -55°C to +125°C
Output Type: Digital
Package List
5 x DS18B20 Digital Temperature Sensor
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If, after this time your order has still not arrived, please contact us and we will process the claim from Royal Mail. Please be assured that you will not be left out of pocket as a result of non-delivery.
If an item ordered by a non-tracked service (Royal Mail 1st class, 2nd class services) fails to be delivered within the estimated delivery times, you will be required to wait for the maximum delivery time period (see above) before we can confirm that the item has been lost and issue a refund. Whilst we understand that this can be frustrating, there are many reasons why a parcel can be delayed (miss direction of parcel, failed attempted delivery etc.) and we are unable to confirm non-delivery for these services until after the maximum time frame. If it is important that you get your item promptly we recommend choosing a guaranteed or tracked service (Royal Mail special delivery, First and Second Class Recorded etc).
These are Royal Mail's constraints and all UK sellers using Royal Mail delivery services are governed by these guidelines.
We accept returns without quibble for a full 14 days after the sale. Please package the product with the same care we do before returning for full refund.
All items must be in original condition (unused in any way) and with all original packaging, manuals and accessories.
Buyer is responsible for all return shipping charges.
Contact us within 14 days of receipt of item to arrange returns. If your item arrives damaged, please contact us immediately using the eBay messages system, giving a description of the problem, and if possible attach photographs of the item and packaging. This will allow us to process your return as quickly as possible.
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