PRODUCT SPECIFICATIONS: The size of this non-contact voltage tester is approx. 15.2 x 2.5 x 1.8cm / 5.98 x 0.98 x 0.70inch. The high precision intelligent electroscope can measure voltage from 90 to 1000 volts. It is made of high quality ABS and is perfect for the home and electrical industry (Batteries not included) WIDE APPLICATION: This voltage detector can be used for the low voltage bay nuclear phase to measure whether wires in the line are in phase or out of phase. It can be used to distinguish between alternating current and direct current, and to determine positive and negative electrodes of alternating current (Batteries not included) PRODUCT FEATURES: This electric voltage tester pen is ideal for testing power cables, circuit breakers, wall outlet, junction box, fuse, etc. It is completely insulated, with no exposed metal or conductive parts PACKAGE AND TIPS: This package includes 2 test pencils. Please check the size of our product carefully and read the product size descriptions before purchasing to avoid an unpleasant shopping experience. MULTI-FUNCTION: Non-contact type is more secure, protection level is super high, intelligent zero line recognition, breakpoint detection. Non-Contact Voltage Detection, Convenient and Convenient Way to Test Power Lines AC Voltage: AC1000V Battery model: two AAA batteries (2X1.5V AAA) Alarm mode: sound and light alarm / red indicator light Lighting flashlight: white LED lighting Shape probe size: flat Zero live wire: audible alarm / red indicator light Product size: 19.4 mm / 25 mm / 152.3 mm Product features: with LED lighting Weight: 23.9g Material: PC hardware (Batteries not included) Scope of application: AC voltage induction / line breakpoint / voltage free wire Note: this does not include Other things, the color is based on the first picture, and other pictures only show the effect Due to the differences between different monitors, the picture may not reflect the actual color of the item. Due to manual measurement. Please allow deviation. Thank you!