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The 3M 709 Static Sensor is an accurate, hand-held, lightweight unit designed to measure the electrostatic field associated with charged objects and surfaces. The 709 features a digital (LCD) display and two range settings: LOW to measure up to 1,999 volts and HIGH to measure up to 19,990 volts. The sensor comes with one 9-volt battery and has a battery test circuit, which displays the battery voltage level on the LCD readout when activated. For remote monitoring or permanent recording, the 709 provides two pin-type output jacks. Properties. Recorder Output: ± 2.0 volt analog output minimum load impedance 50,000 ohms. Accuracy: ± 10% (at 1 in. distance from target).
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