Kewtech KEW4105DL-H Digital Earth Resistance Tester
The Kewtech KEW4105DL-H Digital Earth Resistance Tester gives fast and reliable earth resistance measurements in demanding environments. Its IP67 rated housing keeps out dust and water, so it is suitable for indoor and outdoor work. The large backlit display also makes readings easy to see in poor light.
Designed for professional engineers, the Kewtech KEW4105DL-H Digital Earth Resistance Tester performs both 2-pole and 3-pole earth resistance testing from 0.01Ω to 2000Ω. It also measures earth voltage up to 300V AC and DC. In addition, the rotary switch offers simple operation while reducing setup time on site.
Built for Site Conditions
Strong noise rejection of up to 25V RMS helps maintain accurate results when electrical interference is present. LED indicators warn when auxiliary earth spike resistance is incorrect, which helps avoid poor measurements. The rugged hard case model is also designed to withstand regular field use.
Two different set types are available to suit different working needs. The hard case version provides extra protection during transport, while the standard set offers the same measurement performance. Both versions include the essential accessories needed for earth testing.
Clear and Accurate Measurements
This tester provides three resistance ranges with display values up to 2099Ω. Accuracy is rated at ±1.5% of reading for earth resistance and ±1% of reading for voltage measurements. Furthermore, the backlit LCD and earth voltage warning function improve safety during testing.
Because it is compact and lightweight, the Kewtech KEW4105DL-H Digital Earth Resistance Tester is easy to carry between jobs. It meets IEC 61010 safety requirements and carries a CAT IV 100V rating for additional confidence. As a result, it is a dependable instrument for electrical contractors and maintenance engineers.
Key Features
- Measures earth resistance using 2-pole and 3-pole methods
- IP67 dustproof and waterproof construction
- Large LCD display with backlight for clear readings
- Rotary switch provides simple operation
- Noise rejection up to 25V RMS for use in noisy environments
- Measures AC and DC earth voltage up to 300V
- LED indication for auxiliary earth spike condition
- Earth voltage warning function improves user safety
- Supplied in a protective hard carry case
- Compact design for field applications
- Includes simplified measurement probe
- Suitable for electrical installation and maintenance testing
- Complies with IEC safety requirements
- Two different set types are available
Technical Specifications
| Manufacturer | Kewtech |
| Manufacturer part code | KEW4105DL-H |
| Product type | Digital Earth Resistance Tester |
| Earth resistance measuring range | 0.01Ω to 2000Ω |
| Resistance display range | 0.00 to 20.99Ω, 0.0 to 209.9Ω and 0 to 2099Ω |
| Resistance ranges | 20Ω, 200Ω and 2000Ω |
| Earth resistance accuracy | ±1.5% of reading ±0.08Ω and ±1.5% of reading ±4 digits |
| Auxiliary earth resistance limits | Less than 10kΩ, 50kΩ and 100kΩ depending on range |
| Comparator reference values | 10Ω, 100Ω and 500Ω |
| Earth voltage measuring range | 0 to 300V AC and 0 to ±300V DC |
| Voltage display range | 0.0 to 314.9V AC and DC |
| Voltage accuracy | ±1% of reading ±4 digits |
| Noise rejection | Up to 25V RMS |
| Frequency response | 45Hz to 65Hz AC |
| Ingress protection | IP67 |
| Safety category | CAT IV 100V, CAT III 150V and CAT II 300V |
| Applicable standards | IEC 61010-1, IEC 61010-031, IEC 61557-1, IEC 61557-5, IEC 60529 and IEC 61326-1 |
| Power supply | Six LR6 AA 1.5V batteries |
| Dimensions | 121mm × 188mm × 59mm including case lid |
| Weight | Approximately 690g including batteries and case lid |
| Warranty | Not specified |
Document Downloads
What’s Included
- Kewtech KEW4105DL-H Digital Earth Resistance Tester
- Simplified measurement probe
- 20m test lead
- 10m test lead
- 5m test lead
- Auxiliary earth spikes
- Six AA batteries
- Carrying strap
- Hard carry case
- Instruction manual
- Certificate of conformity