The housing is made of PC material, high-temperature and flame-retardant, effectively preventing fire hazards. intelligent chip, stable operation, high sensitivity, and accurate measurement, with low power consumption. LCD color display, dual interface display, voltage-current-active power-power or frequency-power-factor power-power, clear definition, at a glance. The multifunctional design supports the measurement of AC voltage, current, active power, frequency, power factor, and electrical quantity. Functional metering, strengthening electricity management, and making electricity bills more transparent.Standard size, 2P size, 35mm standard guide rail installation, support both up and down wiring for easy installation, strong versatility.Widely used in homes, rental housing, hotels, homestays, office buildings, shopping malls, electrical equipment electricity metering, and so on. Name: Current and Voltage Meter Voltage measurement ranges: AC80V-270V, 1% Current measurement ranges: AC 0-100A, 1% Starting test current: 0.1A Active power measurement ranges: 0-25KW, 1% Starting test power: 10W Energy measurement ranges: 0-9999KWH, 1% Other functions: Press and hold the key for 10 seconds to reset the electrical energy Depending on the batch, the batch number on the product may be different, which does not affect size: 37 x 66 x 80mm Material: PC colour: White Package Contents: 1 x Current and Voltage Meter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.