Specifications:
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<br />1.Voltage:DC 7.5V (5x DC 1.5V AA battery)
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<br />2.Power consumption: below 0.04w
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<br />3.Test electric current:below 10uA
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<br />4.Power consumption:below AC80mV
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<br />5.Test Voltage:below AC80mV
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<br />6.Display : reflex colored LCD display, piezo-electric buzzer
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<br />Operating conditions:
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<br />1.Ambient temperature range: +10  /50 H~+40  /104 H
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<br />2.Relative humidity : 30~80 RH% without condensation
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<br />3.Atmospheric pressure range : 800~1060hPa
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<br />Transport and storage conditions:
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<br />1.Ambient temperature range: +10  /14 H~+70  /158 H
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<br />2.Relative humidity : 8~80 RH% without condensation
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<br />3.Atmospheric pressure range : 700~1060hPa