# WELT-010 — Electrical Tester / Analyzer

> Electrical Tester / Analyzer (iPhone/iPad app by Nikolay Nikitin.)

- Source: https://appshunter.io/ios/app/welt-010/id1519638845 (this page in markdown: same URL + `.md`)
- Developer: [Nikolay Nikitin](https://appshunter.io/developer/1519639177)
- Category: Utilities
- Price: Free
- Age rating: 4+
- Requires: iOS 16.0 · 1 MB
- Languages: American English
- Released: 2023-03-29
- Data updated: 2026-05-18
- User reviews in markdown: https://appshunter.io/ios/app/welt-010/id1519638845/reviews.md

## What is WELT?

WELT-010 Wireless Electrical Tester / Analyzer
The WELT-010, Bluetooth Low Energy Wireless Electrical Tester/Analyzer is designed to inspect and analyze wiring compliance to electrical code such as voltage drop under different load, find problem with splices, wiring connections and conductor quality based on impedance analysis. Connection and wire impedance is calculated based on voltage drop and real current value which is measured during voltage drop test.
Also, The WELT-010 is able to perform electrical socket wiring connection verification (incorrect wiring), AFCI test (series), 30mA ground test, standard GFCI test, measure AC voltage and current. 
All of mentioned parameters directly influence to safety and performance of the electrical system. WELT-010 use iPhone or iPad as command and display unit that give new flexible functional opportunity.

Main Functions
Measuring Voltages (line to neutral, line to ground and neutral to ground)
Measuring external RMS current and power.
Verifies wires connections on the electrical socket (incorrect wiring).
Measuring voltage drop under different load (5A, 10A, 15A and 20A) with measuring of real load current (without trip circuit breakers or blow fuses during tests). 
Real impedance calculation and indication based on measured load current
GFCI test
AFCI Series test
30mA ground test


## Version history (last 3 releases)

### 1.4.1 — 2026-02-02

Updated background and text colors of graphical user interface

### 1.3 — 2025-12-26

fixed speed measuring issues

### 1.2 — 2023-03-29

No release notes.

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## More apps by Nikolay Nikitin

- [SPM MONITOR](https://appshunter.io/ios/app/spm-monitor/id1570522531)
- [SLM-010 Luna Monitor](https://appshunter.io/ios/app/slm-010-luna-monitor/id6446006172)

All apps by Nikolay Nikitin: https://appshunter.io/developer/1519639177

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-05-18.*