you can use JST 3-pin cables (https://www.adafruit.com/product/4336) to 'chain' the adapters. then screw terminals mean you can easily connect DS18B20's in TO-92 (https://www.adafruit.com/product/374) or cable style (https://www.adafruit.com/product/381). there's a 4.7K signal pullup on board that can be disabled by cutting a trace, and a buffered signal LED that will let you know when there's data transmission on the 1-Wire line. prototype PCBs were ordered at 12:31pm, less than an hour from idea to booking!