Abtek Controls people counters, people counting, hand held tachometers, electronic counters, power supplies, dc dc converters,digital timers, plug in timers, proximity sensors, shaft encoders, level control, large digital display, digital panel meters, signal conditioning, electronic timers, timing relays, batch counters, totalizing counters, totalising counters, dpm, sensors, photoelectric, capacitive, inductive, photoelectric, encoder, signal conversion, ratemeter, incremental encoder, decade boxes, resistance substitution box, capacitance substitution box, data display, rs485, rs232, custom electronics, system design Abtek Controls Ltd manufacture a wide range of electronic controls including counters, timers, tachometers, level control, power supplies and sensors.