This DC extension cable is 10" (25 cm) in length. It terminates on one end in a female barrel plug for connection to the male barrel plug on the 16003 transformer. It terminates in pigtails on the other end for insertion into 12V and GND terminals on a datalogger.
This wall charger is used to recharge the battery of a CR200-series datalogger. One end of the 16003 plugs into into an ac wall socket. On the other end, the charger has a barrel plug that attaches to the 14057 DC power cable extension.