716 wire tester pen products are offered for sale by suppliers on Alibaba.com, of which test pencil accounts for 12%, testing equipment accounts for 8%, and other hand tools accounts for 2%.
A wide variety of wire tester pen options are available to you, such as digital, analog and digital and led.You can also choose from lcd, led wire tester pen,As well as from voltage, current testing wire tester pen,and whether wire tester pen is abs, or plastic.