UT12E and UT12M are UNI-T's professional grade voltage detectors. They are designed with IP67 dust/water resistant and can withstand 2-meter drop. These durable devices are great for working in harsh environments. UT12E has an extra vibration mode and UT12M is able to detect magnetic fields. Features: High AC voltage 90V1000V and low AC voltage 24V1000V dual testing modes, which is helpful for you to adjust sensitivity based on voltage. Able to distinguish neutral wire from live wire. UT12E has an extra vibration mode and UT12M is able to detect magnetic fields. Visual and audible alarm at the same time when voltage is detected, and meet CAT-IV 1000V standard to ensure maximum safety. Built-in flashlight makes it convenient to use at night or dark corner. Automatically turn off when no operation and no detection of AC voltage after 5 minutes. IP67 waterproof rating and can withstand 2-meter drop, suitable for working in harsh environments. Compact and portable design allows you to take anywhere anytime. Specifications: Material: ABS Model: UT12E / UT12M (Optional) AC voltage (Low): 24V~1000V AC voltage (High): 90V~1000V Frequency range: 50/60Hz Auto power off: about 5 mins Low Battery Indication: 2.4V Drop Test: 2m Power supply: 2 * 1.5V AAA battery (NOT included) Safety Level: CAT IV 1000V IP Rating: IP67 Item Size: 160.5 * 21.5 * 25mm / 6.31 * 0.84 * 0.98in Item Weight: 72g / 2.53oz Package Weight: 85g / 2.99oz Package Size: 22.5 * 10.2 * 2.5cm / 8.85 * 4.01 * 0.98in Packing List: 1 * Voltage Detector 1 * User Manual (English)