EXTECH INSTRUMENTS EX540 wireless digital multimeter and datalogger is handheld and provides wireless data streaming to a laptop or PC via a USB receiver with a range comparable to Bluetooth (10m/33ft). Ruggedized and waterproof unit can withstand a 6-foot drop, and transmits real-time data for monitoring, trending and analysis (using the included software) on one of two available frequencies (433 and 914 MHz). Device reads voltage, current, resistance, capacitance, frequency (with dual-range sensitivity for electrical and electronic work), duty cycle (dwell), continuity, diode testing (2.8V), and even temperature (using its Type K thermistor bead probe).
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