GENERAL DESCRIPTION
This product is a sealed plastic stick containing three DS1921G iButtons®. The iButtons are connected in parallel through metal plates that are spot-welded to the IO and GND contact, respectively. Two stranded wires protruding from the top end of the stick allow for a 1-Wire® reader/write to make contact to the iButtons for setup and data retrieval. Electrically, the product is specified by the DS1921G data sheet, with the proper scaling (e.g., current ×3, capacitance ×3). The mechanical and thermal characteristics of the module are specified in this document.

FEATURES
■ Three DS1921G networked to monitor temperate at the top, bottom and center of the stick
■ Connects to 1-Wire reader/writer through colorcoded 18 AWG (1 mm Ø) stranded wires with ½ inch (1.3 cm) stripped ends
■ Electrically compatible to the DS1921G Thermochron iButton (3 in parallel)
■ Sealed against liquid intrusion
■ Module position information stored in DS1921G memory

APPLICATIONS
    Concrete Maturity Monitoring