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Microphone:Electret condenser microphone
Use it to measure the risk of sunburn or exposure to high levels of carcinogenic UV radiation every day
stable calibration point
The fruit sclerometer (also called fruit hardness tester)
3 ranges to choose
FR9010 Four-Wire Method Lightning Protection Special Standard Resistance Capacity Factor 1/2W Vacuum Gauges Microphone:Electret condenser microphoneBrand: Graigar Color: Black Features: Resistance value: 1m,10m,100m, 10,100,1000,1K,10K, 100K Military grade wirewound resistor Direct shifting does not require line change Easy to carry The highest precision is 0. 05% model number: FR9010 Part Number: EAN: 0707457447630 Package Dimensions: 4. 7 x 2. 8 x 1. 3 inches
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