JR-1000 USB Starter Pack. Single channel, 8 bit, 32 KB data logger, (One ambient temperature channel). Includes software, serial to USB adapter cable and manual. The JR-1000 is the easiest to use temperature data logger available. With its precision calibrated internal temperature sensor, simply place the logger in the field and leave it to record. Once the desired information has been recorded, plug the logger into the serial port of your computer and begin downloading and viewing the logged data with ACRâs simple TrendReader Express software or feature filled TrendReader 2 software. The JR-1000 is a low-cost, user configurable temperature logger that plugs easily into any computer for data download. Featuring a 5-year battery life, it has the capacity to record up to 244, 800 readings (when data compression is selected).