General Oceanics - Model 2135MEM -Flowmeter Display w/ Memory Expansion/Rs232 Option

Flowmeter display with memory expansion/Rs232 option displays impeller type, velocity, total distance, elapsed time, low battery warning indicator and probe status. Freeze and re-set control. Two line, 32 character lcd display. 4 aa batteries and 10 meter cable included includes memory, rs232 option and software.