Hytera's HYT TC620 is a compact, lightweight and water resistant two way radio. The Hytera TC620 is a great 16 channel radio that has switchable low/high power, channel scan, monitor (squelch drop) function and battery save mode (programmable). The TC620 also features a time out timer to ensure that the radio is not over-used pasty it's duty cycle of 30-seconds per transmission. TC620 also has low battery alert which will let you know when the TC620's bayttery needs to be recharged.
The TC620 is also IP57 ingress compliant. That means it is water resistant and dust resistant. So ideal for outdoor use.