DS1921K Thermochron iButton Kit Overview

The DS1921K Thermochron® iButton® Kit introduces users to the temperature logging capabilities of the Thermochron. Using a personal computer, the Thermochron temperature logger can be setup for a temperature gathering mission. After a temperature gathering mission, the data can be downloaded and viewed or exported. Instructions and software are available to download for free from this website.

The starter kit includes one of each of the parts listed below. The DS1921K is also capable of evaluating any sensor iButton, including high-capacity thermochrons (DS1922L and DS1922T), the hygrochron (DS1923), and the temperature-only iButton (DS1920). Please note that only the DS1921 is included in the kit. Other sensor iButtons will need to be purchased separately.

DS1921K List of Contents

iButton

Key Specifications:   iButton Products Part Number Overview Memory Type Memory Size Data Logger Type Data Logger Size Data Logger Sampling Rate Data Logger Histogram Data Logger Accuracy Data Logger Resolution Data Logger Measurement Range Programmable Alarm UniqueWare Real-Time Clock Price** DS1921G  Temperature Sensor iButton NV SRAM 4Kbits Temperature 2048 Byte 1min to 255min 63-bin ±1°C 0.5°C -40°C to +85°C Temperature High/Low No Yes $14.25 @ 1k See All iButton Products (26) Notes: **This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

iButton Mount

Key Specifications:   iButton Mounting Options Part Number Overview Features Color Price** DS9093F  Key Fob, Flanged • F3 Package Compatible • F5 Package Compatible • Fobs • Plastic Part Black $0.66 @ 1k See All iButton Mounting Options (29) Notes: **This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

iButton Accessories

Key Specifications:   iButton Readers and Adapters Part Number Overview Features RoHS Available Package Price** DS9490R  USB to 1-Wire RJ11 • USB Port • USB Port Adapters • With ID Yes 0/0 $13.75 @ 1k DS1402D-DR8  Blue Dot Receptor, USB and Serial Port • Blue Dot • F5 Package Compatible • RS-232 Port Adapter Cables • USB Port Adapter Cables Yes 0/0 $4.51 @ 1k See All iButton Readers and Adapters (29) Notes: **This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

Getting Started

Follow the instructions in the OneWireViewer and iButton Quick Start Guide

Here are some quick links to get you started once you receive your kit: