Durable and practical circuit testing tool designed for reliable performance and longlasting use. Key Features: Insulated handle for safe operation during electrical testing tasks. quality 45# steel screwdriver shaft for strength, durability, and resistance to wear. Precision craftsmanship ensures long service life and dependable functionality. Multifunction design with a double removable head, allowing use as either a slotted screwdriver or a circuit tester. Builtin light for clear visibility when testing in lowlight conditions. Enables safe, quick, and accurate electrical checks or tests. Specifications: Handle: Insulated material for user safety. Shaft: 45# steel, strong and durable. Function: Slotted screwdriver and testing tool in one. Lighting: Integrated illumination for improved visibility. Practical Applications: 1. Electricians can use the tool to quickly identify live circuits and safely test connections onsite. 2. Homeowners can check wiring or outlet functionality when troubleshooting electrical issues. 3. DIY enthusiasts can use it as both a screwdriver for small repairs and a tester for confirming safe electrical setups. Designed for efficiency, ease of use, and safety, this circuit tester with screwdriver functionality is an essential tool for electrical maintenance, installation work, and everyday troubleshooting.