?Features: Professional AC Voltage Detector. Non-contact test. Designed for measuring AC voltage. Voltage sensitivity is from 100V to 240V AC. It is designed according to IEC1010-1 CAT III 600V concerning safety requirements. Safe， professional and easy-to-use. Small and compact pen， design for easy carrying. Specifications: Safety: For indoor use Voltage Sensitivity: 100V to 240V AC Frequency: 50/60Hz Detection distance: !#!lt!*!5mm Operating Temperature: 32 to 122℉ (0 to 50℃) Storage Temperature: -4 to 140℉ (-20 to 60℃) Humidity: !#!lt!*!85%RH Battery: 2 * AAA batteries Item dimensions: 14.8 * 2 * 2.5cm Item weight: 40g Package size: 23 * 9.6 * 3.5cm Package weight: 77g Package including: 1 * AC Voltage Detector