Profile: PumpStrokeCounters.com is a manufacturer of pump stroke counters and instrumentation for oil industries. Our model 5700-2 pump stroke counter monitors up to 2 pumps and displays the total strokes & rate per minute for each pump. The test button will test the unit at 60 strokes per minute (SPM). Our pump stroke counter is provided with an embedded CPU, LCD display, auto power ON/OFF, stainless steel case, and lithium batteries. The count is held in memory, even during standby. As soon as the counter detects a stroke, the LCDs will power up and the count & strokes per minute will resume. The rate display is updated with every stroke. Our 5700-2S is a solar powered stroke counter with a battery backup. This stroke counter monitors two pumps. Each pump section monitors the total strokes and SPM. The rate display is updated with every stroke. Each unit comes with 4 feet cable connection.