Check the listing for details. Temperature sensor module DS18B20 module - without Sensor. Condition: New. Listed at 1.99 USD. Description: Condition: Brand newExpanding the DS18B20 interface circuit, easy for DIY projectsFor DIY Electronic Bricks, intelligent Car and so onModel: DS18B20Material: PCBSize: Approx. 19mm x 15mm 1 x DS18B20 temperature sensor module(not include DS18B20 Chip) - Many customers ask if they can ship their products in a paper envelope. Unfortunately, we cannot do that because merchandise needs extra protection, and USPS does not provide a tracking number for this type of service.- The shipping service we offer is First-Class Package Service, which is a domestic mail service offered by USPS. It is designed for mailing lightweight packages that weigh up to 15.99 ounces and offers delivery in 1-5 business days. It includes a tracking number, allowing customers to track their packages. USPS prices start at $4.75, but we don't have any control over shipping prices.