Pocket pen style voltage alert detector tester alarm features detects AC voltage90V~1000V without metallic contact. Entire outer surface are non-conductive for safety、 helps avoid high voltage shock. <br><br>- Detects AC voltage without metallic contact<br>- Red LED voltage indicator、 convenient for operate in darkness<br>- Fits in a shirt pocket for convenience<br>- Entire outer surface are non-conductive for safety、 helps avoid high voltage shock<br>- Quickly locates the hot、 neutral and ground terminals in any receptacle<br>- Voltage Sensitivity: 90~1000V AC<br>- Powered by 2 * 1.5V AAA batteries (not included)<br><br /> Pocket pen style voltage alert detector tester alarm features detects AC voltage90V~1000V without metallic contact. Entire outer surface are non-conductive for safety、 helps avoid high voltage shock. <br /><br />- Detects AC voltage without metallic contact<br />- Red LED voltage indicator、 convenient for operate in darkness<br />- Fits in a shirt pocket for convenience<br />- Entire outer surface are non-conductive for safety、 helps avoid high voltage shock<br />- Quickly locates the hot、 neutral and ground terminals in any receptacle<br />- Voltage Sensitivity: 90~1000V AC<br />- Powered by 2 * 1.5V AAA batteries (not included)<br />                                                                                                                                Dimensions: 5.51 in x 0.75 in x 0.63 in<br />Weight: 0.53 oz