
Both radios, the keypad and screen version, and the non display version are rated to IP67, which means they are submersible in water. The models are PX-780 for the display model, and PX-700 for the non display.
http://puxing.en.alibaba.com/product/923835783-218082321/PX_700_digital_two_way_radio.html
http://puxing.en.alibaba.com/product/923848660-218082321/PX_780_digital_two_way_radio.html