Model | Range
| Resolution
| clamp size | RS232 | Data Storge | Other
|
MEWOI3000B+ ![1561194179922753.jpg MEWOI3000B+.jpg](http://www.mewoi.com/upload/201906/1561194179922753.jpg)
| 0.01Ω-200Ω | 0.001Ω | 65mm×32mm | optional
| 99sets |
|
MEWOI3100B+ ![1561194253969545.jpg MEWOI3100B+.jpg](http://www.mewoi.com/upload/201906/1561194253969545.jpg)
| ø32mm |
|
MEWOI3000B ![MEWOI OEM/ODM Instruments Manufacturer MEWOI OEM/ODM Instruments Manufacturer](https://www.mewoi.com/upload/202109/1632821138398136.png)
| 55mm×32mm |
|
|
MEWOI3000 ![MEWOI OEM/ODM Instruments Manufacturer MEWOI OEM/ODM Instruments Manufacturer](https://www.mewoi.com/upload/202109/1632899986415227.png)
| 0.01Ω-1000Ω | 0.001Ω | 55mm×32mm |
| 99sets |
|
MEWOI3000+ ![1561194210222800.jpg MEWOI3000B+.jpg](http://www.mewoi.com/upload/201906/1561194210222800.jpg)
| 0.01Ω-1200Ω | 0.001Ω | 65mm×32mm | optional | 99sets |
|
MEWOI3100+ ![1561194263284332.jpg MEWOI3100B+.jpg](http://www.mewoi.com/upload/201906/1561194263284332.jpg)
| ø32mm |
|
MEWOI3000D ![MEWOI OEM/ODM Instruments Manufacturer MEWOI OEM/ODM Instruments Manufacturer](https://www.mewoi.com/upload/202109/1632902265378320.png)
| 0.01Ω-1000Ω 0.00-30.00A | 0.001Ω,0.05mA | 55mm×32mm |
| 99sets |
|
MEWOI3000D+ ![1561194220320192.jpg MEWOI3000B+.jpg](http://www.mewoi.com/upload/201906/1561194220320192.jpg)
| 0.01Ω-1200Ω 0.00-20.00A | 0.001Ω,0.05mA | 65mm×32mm | optional | 99sets |
|
MEWOI3100D+ ![1561194273279940.jpg MEWOI3100B+.jpg](http://www.mewoi.com/upload/201906/1561194273279940.jpg)
| ø32mm |
|
MEWOI3200 ![1561194310700822.jpg MEWOI3200.80.jpg](http://www.mewoi.com/upload/201906/1561194310700822.jpg)
| 0.01Ω-1500Ω 0.00-40.00A | 0.001Ω,0.05mA | 65mm×32m m | √ | 99sets | Rechargable Batteries |
MEWOI3800CA ![1563972302317145.jpg MEWOI3800CA.80.jpg](http://www.mewoi.com/upload/201907/1563972302317145.jpg)
| 0.01Ω-100Ω | 0.01Ω | 60mm*30mm,(Closed) | Appoint with RS485 communication interface, provide standard MODBUS-RTU communication protocol | × |
|
MEWOI3800DA ![1563972888709273.jpg MEWOI3800DA.80.jpg](http://www.mewoi.com/upload/201907/1563972888709273.jpg)
| 0.01Ω-100Ω | 0.01Ω | 60mm*30mm (Closed), | × | LCD display,warning function. |
MEWOI3800LC ![1561194383431000.jpg MEWOI3800LC.80.jpg](http://www.mewoi.com/upload/201906/1561194383431000.jpg)
| 0.01Ω-200Ω | 0.01Ω | Split Type 56mm×26mm | Wired network: RS232,RS485 standard communication protocol Wireless network: RS232、RS485、GSM communication protocol | × |
|
MEWOI3800LD ![1561194405971309.jpg MEWOI3800LD.80.jpg](http://www.mewoi.com/upload/201906/1561194405971309.jpg)
| 0.01Ω-200Ω | 0.01Ω | Split Type 56mm×26mm | × | LCD display,warning function. |
MEWOI3900 ![MEWOI OEM/ODM Instruments Manufacturer MEWOI OEM/ODM Instruments Manufacturer](https://www.mewoi.com/upload/202209/1664367706309614.jpg)
| 0.01Ω~2000Ω | 0.01Ω |
|
|
| 2/3-wires measurement, Online |
MEWOI3900C ![MEWOI OEM/ODM Instruments Manufacturer MEWOI OEM/ODM Instruments Manufacturer](https://www.mewoi.com/upload/202209/1664367278968753.png)
| 0.01Ω~2000Ω | 0.01Ω |
|
|
| 2/3-wires measurement, Online,GPRS |
MEWOI4000 ![1561194449406670.jpg MEWOI4000.80.jpg](http://www.mewoi.com/upload/201906/1561194449406670.jpg)
| 0.01Ω~2000Ω; 0~600V | 0.01Ω,1V |
| √ | 400sets | 2/3-wires measurement of earth resistance/voltage |
MEWOI4000D ![MEWOI OEM/ODM Instruments Manufacturer MEWOI OEM/ODM Instruments Manufacturer](https://www.mewoi.com/upload/202209/1664366823884708.jpg)
| 0.01Ω~2000Ω; 0~600V | 0.01Ω,1V |
| √ | 400sets | 2/3-wires measurement of earth resistance/voltage |
MEWOI4000C ![1561194465166946.jpg MEWOI4000C.80.jpg](http://www.mewoi.com/upload/201906/1561194465166946.jpg)
| earth resistance:0.01Ω~30.00KΩ; soil resistivity:0.01Ωm~9000KΩm; 0~600V | 0.01Ω,0.01Ωm,1V |
| √ | 300sets | 2/3/4-wires measurement of earth resistance,soil resistivity,and earth voltage |
MEWOI4200D ![MEWOI OEM/ODM Instruments Manufacturer MEWOI OEM/ODM Instruments Manufacturer](https://www.mewoi.com/upload/202209/1664367112944010.png)
| earth resistance:0.01Ω~30.00KΩ; soil resistivity:0.01Ωm~9000KΩm; 0~600V | 0.01Ω,0.01Ωm,1V |
| √ | 300sets | 2/3/4-wires measurement of earth resistance,soil resistivity,and earth voltage |
MEWOI4200 ![1561194511723060.jpg MEWOI4200-1_80.jpg](http://www.mewoi.com/upload/201906/1561194511723060.jpg)
| earth resistance:0.01Ω~30.00KΩ;AC Leakage current: 0.00mA~600A; soil resistivity:0.01Ωm~9000KΩm;Earth Voltage:0.0~100.0V,dual clamp: 0.01Ω-100Ω | 0.01Ω,0.01Ωm,0.01A,0.1V | ø68mm | √ | 2000sets | 2/3/4-wires,selection & dual clamp method to measure the earth resistance,soil resistivity,earth voltage,AC voltage,AC leakage current,warning function.
|
MEWOI4300D ![MEWOI OEM/ODM Instruments Manufacturer MEWOI OEM/ODM Instruments Manufacturer](https://www.mewoi.com/upload/202209/1664366645596057.jpg)
| earth resistance:0.01Ω~30.00KΩ;AC Leakage current: 0.00mA~600A; soil resistivity:0.01Ωm~9000KΩm;Earth Voltage:0.0~100.0V,dual clamp: 0.01Ω-100Ω | 0.01Ω,0.01Ωm,0.01A,0.1V | ø68mm | √ | 2000sets | 2/3/4-wires,selection & dual clamp method to measure the earth resistance,soil resistivity,earth voltage,AC voltage,AC leakage current,warning function.
|
MEWOI4250 ![MEWOI OEM/ODM Instruments Manufacturer MEWOI OEM/ODM Instruments Manufacturer](https://www.mewoi.com/upload/202209/1664367978315166.jpg)
| Ground resistance:0.10Ω ~ 200Ω(4 clamp method) Ground resistance ( R ):0.10Ω ~ 20KΩ Soil resistivity ( ρ )0kΩm~9000kΩm AC current (A~)1mA~500.0A Ground voltage (V~)0.0V~200.0V | 0.01Ω,0.01Ωm,0.01mA,0.1V | ø68mm | √ | 100sets | Untie-free tower grounding resistance tester |