Digital Vernier Caliper
The Digital Caliper (sometimes incorrectly called the Digital Vernier Caliper) is a precision instrument that can be used to measure internal and external distances extremely accurately. Typically the distances/ measurements are read on an LCD display.
Digital Pen Electric Tester Taparia
The tip of the tester is touched to the conductor being tested (for instance, it can be used on a wire in a switch, or inserted into a hole of an electric socket). A neon lamp takes very little current to light, and thus can use the user's body capacitance to earth ground to complete the circuit.
Return Measuring Tape Stanley
On a standard tape measure, the biggest marking is the 'inch'. As the length decreases, so does the mark size. For example, ½" has a bigger mark than ¼" which has a bigger mark than ⅛", and so on.
Digital Multi Meter Mastech
A digital multimeter is a test tool used to measure two or more electrical values—principally voltage (volts), current (amps) and resistance (ohms). It is a standard diagnostic tool for technicians in the electrical/electronic industries.
Stainless Steel Rule
A ruler, sometimes called a rule or line gauge, is a device used in geometry and technical drawing as well as the engineering and construction industries, to measure or draw straight lines.
A spirit level is used for determining horizontal and vertical levels and can be used on a variety of DIY projects. A spirit level is designed to indicate whether a surface is levelled on the horizontal OR the vertical plane and there are a variety of sizes and designs too for different use cases.