1826 NA-A Includes Only: Instruction manual Test leads Shoulder belt BatteriesFeatures: Microprocessor-controlled. Measures Earth Resistance without the need for poles in the ground or external measuring wires. Earth measurement uses the real earth's current path and the current generated by the electric network, without the need for any disconnection. The Earth Resistance displayed is exactly the earth resistance that the earth current will need to go through if an earth fault occurs. No need to add all the bonding points and connection paths resistances. Displays voltage supply at the transformer (Line to Neutral), without loading the transformer. Displays voltage between Line (Phase) and Earth (Ground), without drawing any current. Measures the impedance of the line itself so you can analyze and differentiate between the multiples paths of the wiring. Measures the Neutral Impedance. Single one smart push-button operation; ON, Test, Scroll through results and menus. Checks wiring integrity (LEDs). Auto-off/auto-ranging (software ranging). Combined prospective short circuit current, loop, individual wire, and Earth Tester. Voltage test L-N and L-E. Loop test for L-E and L-N and PSC. Enables analysis of constituent components in L-E and L-N loops giving resistance of earth, a neutral wire, live wire, and transformer winding. The display can be customized for large orders.The 1826 NA is a portable electrical network analyzer. It has a built-in Earth tester which does not require the use of poles or long wires. This instrument is useful for fault-finding or commissioning of electrical installations. Differentiation between the Line (hot), Neutral, and Earth (ground) path by reading their values has never been so easy. Bad contacts, old wiring, or bad earth path are quickly identified. The faulty electrical network can be resolved in a fraction of the time normally required using conventional equipment. Downtime due to a faulty electrical network is minimal as the fault can be identified and diagnosed quickly. Find which wires need to be attended to and why (find those old wires with high impedance before a fire starts, and replace them). The complete electrical network can be analyzed by scrolling through the results.