EARTH CLAMP TESTER - KEW 4202
KYORITSU 4202 Digital Earth Clamp Tester
The KYORITSU 4202 digital earth clamp tester is a high-precision instrument designed to measure ground resistance without disconnecting the earth system. The KYORITSU 4202 digital earth clamp tester provides reliable readings for electricians, engineers, and maintenance personnel in industrial, commercial, and residential environments.
Overview
The KYORITSU 4202 digital earth clamp tester allows accurate ground resistance measurement without the need to disconnect the earth system. Its portable design and high-precision capability make it ideal for field inspections, maintenance, and electrical safety audits. This tester is durable, easy to use, and compatible with a wide range of industrial and commercial applications, ensuring efficient and safe measurements every time.

Key Features:
- Wide Measuring Range: Measures earth resistance from 0.05Ω to 1500Ω, suitable for multi-earthing systems.
- True RMS Measurement: Provides leakage and phase current readings from 0.1mA to 30.0A for comprehensive analysis.
- Noise Immunity: The filter function helps reduce the impact of electrical noise, with a noise mark indicating excessive interference.
- Memory Function: Stores up to 100 data sets for later retrieval and analysis.
- Bluetooth® Connectivity: Easily syncs with the "KEW smart 4202" app available on the Google Play Store, enabling convenient data transfer to Android devices.
- Over-Range Indication: Displays "OL" when the input exceeds the upper limit of the measuring range.
- Auto Power Off: Automatically powers off the device after 10 minutes of inactivity to conserve battery life.
Specifications Table
| Function | Range | Accuracy |
|---|---|---|
| Earth Resistance (Auto-ranging) | 20.00Ω / 200.00Ω / 1500Ω | ±1.5% ±0.05Ω (0.00 - 20.99Ω) |
| ±2% ±0.5Ω (16.0 - 99.9Ω) | ||
| ±3% ±2Ω (100.0 - 209.9Ω) | ||
| AC Current (50Hz/60Hz, Auto-ranging) | 100.0mA / 1000mA / 10.00A / 30.0A | ±2% ±0.7mA (0.0 - 104.9mA) |
| ±2% (80mA - 31.5A) |
General Specifications
| Feature | Details |
|---|---|
| Over-Range Indication | Displays "OL" when the input exceeds the upper limit of the measurement range. |
| Response Time | Approx. 7 seconds for Earth resistance, approx. 2 seconds for AC current. |
| Sample Rate | Approx. 1 time per second. |
| Current Consumption | Approx. 50mA (max. 100mA). |
| Measurement Time | Approx. 5 hours with R6 batteries, approx. 21 hours with LR6 batteries. |
| Conductor Size | Approx. Ø32mm |
| Applicable Standards | IEC 61010-1 CAT IV 300V Pollution degree 2, IEC 61010-2-032, IEC 61326 (EMC) |
| Power Source | LR6/R6 (AA) (1.5V) × 4 |
| Dimensions | 246(L) × 120(W) × 54(D)mm |
| Weight | Approx. 780g (including batteries) |
| Included Accessories |
|
KEW Smart 4202 Application
The "KEW Smart 4202" application is available for free on the Google Play Store. This app allows you to manage data from the KEW 4202 Earth Clamp Tester via Bluetooth and visualize readings on your Android device. It supports Android versions 8 to 15 and requires WVGA resolution (800 × 480) or higher and a GPS function. Communication charges may apply separately for downloading the app.
Order by 4PM to get delivered next working day! We use 24 hours service with carriers in most cases so that you can get your order delivered on time.
Free delivery for total orders above RM500, otherwise additional charges costs are calculated at checkout based on your order’s weight and delivery location.
Further details please click here for more info.
Please notify us within 14 calendar days of receiving your product to request a free exchange or full refund, if eligible. We will cover all return shipping costs, and no restocking fees will apply in this case.
Requests made after 14 days may be accepted at our discretion and will be subject to a 10% restocking fee. Techno Tools & Equipment reserves the right to reject any return request found to be ineligible.
Further details please click here for more info.