Phase tester c.k tools 440009 — 3.5 mm tip, 125–250 V AC

Phase tester c.k tools 440009 — 3.5 mm tip, 125–250 V AC is a compact handheld device for detecting the presence of alternating voltage in live electrical circuits. The tester is designed with a slim 3.5 mm probe to reach into tight terminals and screw connections, providing electricians and technicians with a quick means to verify whether a conductor is live within the 125–250 V AC range. The tool is intended for basic live-voltage checks during installations, maintenance and troubleshooting.

Advantages

The slim 3.5 mm tip improves access to confined terminal spaces while maintaining user visibility of the contact point. Its compact form factor allows one-handed operation and easy storage in a pocket or tool bag. The tester is suitable for rapid checks of alternating voltage without complex setup, reducing time spent on routine verification tasks. The construction provides adequate insulation on the handle and a clear contact point to support safe probing when used with appropriate precautions.

Suitable for

• Quick live/phase presence checks on residential and commercial wiring
• Accessing screw terminals and small contact points in junction boxes and equipment
• Routine electrical maintenance and field troubleshooting
• Verifying phase presence before simple replacement tasks (fuses, switches, sockets)

Key specifications

• Probe tip diameter: 3.5 mm for access to tight terminals
• Voltage detection range: 125–250 V AC
• Form factor: compact, handheld tester suitable for one-handed use
• Handle: insulated grip for electrical safety during testing
• Intended measurement type: presence/absence of AC voltage (phase detection)

How to use

Hold the insulated handle and place the 3.5 mm tip against the conductor, terminal or contact point to be tested. Ensure you follow safe working practices: de-energize when possible, use suitable personal protective equipment, and keep fingers behind the insulated grip. With the tester correctly positioned, observe the indicator (visual or audible according to the tester design) to determine if AC voltage within the 125–250 V range is present. Do not use the tester to measure exact voltage values or on systems outside the specified range.

Usage recommendations

Use the tester only on circuits within the specified 125–250 V AC range and regularly check the condition of the probe and insulation. Where possible, confirm results with a secondary instrument before performing work on live conductors. Store the tester in a dry environment and inspect for damage before each use.