Red LED Tachometer RPM Speed Meter with Proximity Switch Sensor NPNSold By universbuy
Description : Power requirement : DC 8-15V or AC6-18V. Measure range : 99999 ~ 3.8RPM. Error range : ± 0.5 ‰ - 1.5 ‰ rpm Clear zero : Automatic . Clear zero time : About 10s. Refresh frequency : 0...Read More…
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