Model | Range
| Resolution
| clamp size | RS232 | Data Storge | Other
|
MEWOI3000B+ 
| 0.01Ω-200Ω | 0.001Ω | 65mm×32mm | optional
| 99sets |
|
MEWOI3100B+ 
| ø32mm |
|
MEWOI3000B 
| 55mm×32mm |
|
|
MEWOI3000 
| 0.01Ω-1000Ω | 0.001Ω | 55mm×32mm |
| 99sets |
|
MEWOI3000+ 
| 0.01Ω-1200Ω | 0.001Ω | 65mm×32mm | optional | 99sets |
|
MEWOI3100+ 
| ø32mm |
|
MEWOI3000D 
| 0.01Ω-1000Ω 0.00-30.00A | 0.001Ω,0.05mA | 55mm×32mm |
| 99sets |
|
MEWOI3000D+ 
| 0.01Ω-1200Ω 0.00-20.00A | 0.001Ω,0.05mA | 65mm×32mm | optional | 99sets |
|
MEWOI3100D+ 
| ø32mm |
|
MEWOI3200 
| 0.01Ω-1500Ω 0.00-40.00A | 0.001Ω,0.05mA | 65mm×32m m | √ | 99sets | Rechargable Batteries |
MEWOI3800CA 
| 0.01Ω-100Ω | 0.01Ω | 60mm*30mm,(Closed) | Appoint with RS485 communication interface, provide standard MODBUS-RTU communication protocol | × |
|
MEWOI3800DA 
| 0.01Ω-100Ω | 0.01Ω | 60mm*30mm (Closed), | × | LCD display,warning function. |
MEWOI3800LC 
| 0.01Ω-200Ω | 0.01Ω | Split Type 56mm×26mm | Wired network: RS232,RS485 standard communication protocol Wireless network: RS232、RS485、GSM communication protocol | × |
|
MEWOI3800LD 
| 0.01Ω-200Ω | 0.01Ω | Split Type 56mm×26mm | × | LCD display,warning function. |
MEWOI3900 
| 0.01Ω~2000Ω | 0.01Ω |
|
|
| 2/3-wires measurement, Online |
MEWOI3900C 
| 0.01Ω~2000Ω | 0.01Ω |
|
|
| 2/3-wires measurement, Online,GPRS |
MEWOI4000 
| 0.01Ω~2000Ω; 0~600V | 0.01Ω,1V |
| √ | 400sets | 2/3-wires measurement of earth resistance/voltage |
MEWOI4000D 
| 0.01Ω~2000Ω; 0~600V | 0.01Ω,1V |
| √ | 400sets | 2/3-wires measurement of earth resistance/voltage |
MEWOI4000C 
| 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 
| 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 
| 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 
| 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 
| 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 |