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GV13T AC220V AC380V Generator LED Digital Display Meter 3 in 1 Voltage Frequency Chronograph Meter Voltmeter Tester Multimeter

Generator Digital Display Meter 3 in 1 Voltage Frequency Chronograph GV13T 220V/380V Feature: 1. Can measure voltage, frequency, accumulated running time, and current running time simultaneously.2. 4-digit high brightness LED digital tube displays measured values, can provide clear readings.3. With screen change button, easy to replace and install.4. No external working power required, stable to operate.5. Available in 220V, 380V AC system for choice. Specification: Item Type: Generator Digital Display MeterParameter Display: Phase Voltage: VFrequency: HzCumulative Running Time: HCurrent Running Time: RRange and Accuracy:Voltage: AC165-275V 220VAC System, Level 1 / AC280-450V 380VAC System, Level 1Frequency: 40-70Hz, 0.5 LevelCumulative Running Time: [...]

EMF Meter Electromagnetic Field Radiation Detector Radio Frequency Field Tester Rechargeable Portable Counter Emission Dosimeter

Basic Parameters ERICKHILL ER02 A Professional EMF Meter 3-in-1 Multifunctional Meter Erickhill EMF MeterER02 is an electric fieldEF, magnetic fieldMF, and radio frequency fieldRF 3-in-1 multifuctional meter. It is equipped with a build-in electromagnetic radiation sensor, which can display tha radiation value on LCD screen after processing by the micro-control chip. You can make reasonable processing or take effective prevention measures toward the electromagnetic radiation according to the test result. Graphical Interface Short press the GRAPH key to switch the measurement interface/graph interface. The measurement interface displays the measured value and peak value, and the graph interface displays [...]

MUFASHA Pen Type Nuclear Radiation Detector X-ray Y-ray B-ray with Built-in Lithium Battery Mini-Size