Product Name: Smart Multifunctional TesterWorking temperature: 0-40Frequency range: 50/60HzAC voltage range: 12-1000V (high sensitivity) 48-1000V (low sensitivity)Alarm mode: sound and light alarmLow voltage reminder: supportZero line/fire line judgment: supportFlashlight: YesPower supply mode: AAA battery*2Product weight: 50gSize: 160*18*22cmApplicable scenarios: household/industrial/electricianSafety test, non-contact measurement, insulation protection level reaches CATIV 1000V, without any risk.Intelligently identify the neutral/live line, the live line signal light flashes quickly, and the alarm sound is loud; the neutral line signal light is off, there is no alarm sound or the signal light flashes slowly, and the alarm sound is small.Support one-key sensitivity switch, high sensitivity 12-1000V, low sensitivity 48-1000V.The built-in flashlight function can be turned on with one button, which is convenient for operation in the case of insufficient light.Fall-proof, shock-proof, durable and wear-resistant.The pen clip design is convenient to carry around and work conveniently.