Discharge pen with voltmeter to display discharge voltage, high-voltage capacitor discharge tool, air conditioner repair, digital compatible discharge, can be used, up to 1000V DC. The capacitor discharge pen can quickly discharge the high-voltage large capacitor or AC capacitor in the switching power supply when repairing the product, so as to avoid being shocked by residual electricity during repair, and protect the operator and the product from damage. The capacitor discharge pen uses a constant current source circuit to discharge quickly. When using, the red and black test pens are not divided into positive and negative poles. The test pens are directly placed on the capacitor to be discharged. No be generated during discharge, and there is an LED indication. The LED is on, indicating that the capacitor still has electricity, and the LED is off, indicating that the electricity has been basically discharged. This product is small in size, easy to carry, and has a wide range of uses. As a professional maintenance personnel, it is necessary to have it and support it at any time to protect the safety of the product and yourself. Discharge DC voltage Less than 1000VDC, 3-digit digital tube voltmeter display. Discharge does not spark, regardless of positive and negative poles, safe and fast. After discharging until the voltmeter goes out, continue discharging for 10S for more complete discharge. Note: Try to use it for discharge below 800V, because the higher the voltage, the greater the heat generated. Colour:As Shown Material:plastic Package Contents: 1 * Capacitor Discharger 1 * Pen Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.