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电气工具 - 电阻测试仪

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Extech 380260
Extech 380260

自动量程数字兆欧计

这款自动量程兆欧计最高可测量 2000MΩ 的绝缘电阻。可选择 250、500 或 1000VDC 测试电压。配备大尺寸背光双显示屏，可显示测试电压输出和绝缘电阻。具有低电阻、导通性和 AC/DC 电压测量功能。其他功能包括测试结束时自动放电、保护皮套（带支架）、开机锁定功能和数据保持。配有测试引线、便携箱和 6 节 AA 电池。

Extech 380320
Extech 380320

Analog Insulation Tester

The Extech 380320 is an Analog Insulation Tester with a large, easy to read analog display. It features a live circuit warning which displays the actual AC voltage measurement. It also includes an automatic discharge circuit, lock power on feature for extended test times, and insulation resistance up to 400 MΩ. Complete with heavy duty test leads, alligator clip test lead, 6 AA batteries, hanging strap, and hard carrying case.

Extech 380360
Extech 380360

Digital Megohmmeter

The Extech 380360 is a 1000 V Megohmmeter with an automatic 3 minute test. It has three test voltages of 250 V, 500 V and 1000 V, plus insulation resistance up to 2000 MΩ. Automatic discharge when the safety "Press to Test" button is released. Complete with 6 AA batteries, heavy duty 0.8 m (2.5 ft) test leads, alligator clip, large probe, and case with neck strap.

Extech 380363
Extech 380363

数字量高压绝缘测试仪

这款 Extech 绝缘测试仪可在 250V、500V 和 1000V 的测试电压下，测量最高 10GΩ 的电阻。其功能包括：用于测试连接的 Lo-Ohms、用于查看趋势的模拟条形图、最高 999V 的交流/直流电压测量、手动数据记录/调用功能（9 组）以及带电电路显示警告和蜂鸣器。可用于测试电机、变压器绕组、仪器仪表、电器，检查电线和电缆组件中的水分，安全评估新线路安装，以及检查断路器、继电器和开关中的碳痕迹。Extech 绝缘测试仪具有很高的灵敏度，可确保可靠地监控低电阻电机绕组。配有便携箱、测试引线和 6 节 AA 电池。

Extech 380395
Extech 380395

高压数字绝缘测试仪 (110V)

在 500V、1000V、2500V 和 5000V 的测试电压下，380395 可测量最高 60GΩ 的绝缘电阻。其功能包括极化指数 (PI) 测量、介质吸收比 (DAR) 测量、最高 600 V 的交流/直流电压测量、峰值和相对值功能，以及用于红外测量的 1 至 15 分钟计时器功能。配有测试引线、八节 C 电池、120 V 交流适配器、重载便携箱和用户手册。

Extech 380396
Extech 380396

High Voltage Digital Insulation Tester (220V)

With the Extech 380396, measure insulation resistance to 60 GΩ with test voltages of 500 V, 1000 V, 2500 V, and 5000 V. It features several measurements including polarization index (PI), dielectric absorption ratio (DAR), and AC/DC voltage to 600 V with a min/max function. It also has peak and relative functions, as well as a 1 to 15 minute timer function for IR measurements. Comes with test leads, eight C batteries, 220 V AC adaptor, heavy duty carrying case, and user manual.

Extech 380460
Extech 380460

高精度毫欧姆计 (110V)

380460 是一款高精度毫欧姆计。它具有很高的精度和性能，可以测量很低的电阻。此款毫欧姆计的分辨率高达 0.1mΩ。具有耐用的小型现场检修用外壳，带保护盖。可手动调节归零显示和超量程显示。配有带 Kelvin 夹子接头的 4 线电缆。

Extech 380462
Extech 380462

Precision Milliohm Meter (220V)

The Extech 380462 is a Precision Milliohm Meter (220 V). Performance for low resistance measurements. Equipped with a large 18 mm, 1999 count LCD screen. Featuring manual, zero display adjust and overrange indication. CE certified. Complete with 4-wire cables with Kelvin clip connectors.

Extech 380465
Extech 380465

Kelvin Clip Test Lead Set

The Extech 380465 is a Kelvin Clip Test Lead Set for Milliohm Meter Models 380460 and 380462. The 380465 is built from compact, durable field service housing with a protective cover.

Extech 380560
Extech 380560

高分辨率高精度毫欧姆计 (110VAC)

380560 台式仪表的分辨率可高达 0.01 mΩ，采用 4 线 Kelvin 夹子测试引线。具有 7 个量程，可测量很宽范围的低电阻，配有 1999 计数的显示屏，数位尺寸为 20.9mm，带自动归零功能。内置比较仪，供 Hi/Lo/Go 电阻测试或选择。配有带 Kelvin 夹子接头的 4 线电缆和电源线。

Extech 380562
Extech 380562

Extech 380562 High Resolution Precision Milliohm Meter (220 VAC)

Compact and precise, the Extech 380562 Milliohm Meter has 7 ranges and measures down to 0.01 mΩ using 4-wire Kelvin clip test leads. Measurements are displayed on the unit's large 20.3 mm (0.8 in), 1999-count LCD. It comes with a built-in comparator for Hi/Lo/Go resistance testing or selection. Complete with 4-wire cables with Kelvin clip connectors and power cord.

Extech 380565
Extech 380565

Kelvin 夹子测试引线组件

380565 是一套带 Kelvin 夹子的测试引线，用于 Extech 380580 电池供电毫欧姆计。这些测试引线和 Kelvin 夹子用作附加或备用件。

Extech 380580
Extech 380580

电池供电毫欧姆计

380580 是一款电池供电毫欧姆计。这款毫欧姆计是一种高精度、高分辨率、便携式、电池驱动，便于现场使用的毫欧姆计，可用于四端子 Kelvin 测量，以及过热和过电压保护。已通过 CE 认证。配有 8 节 AA 电池、2 组测试引线（4 根导线配有 4 个鳄鱼夹；4 根导线配有两个 Kelvin 鳄鱼夹）。

Extech 382252：接地电阻测试仪套装
Extech 382252：接地电阻测试仪套装

接地电阻测试仪套装

382252 是接地电阻测试仪套装，包括 20 至 2000 欧姆 3 个量程的接地测量所需的所有硬件。同时还具有交流/直流电压、电阻和导通测量功能。具有自动归零调节功能和 20Ω/200Ω/2000Ω 三个接地电阻量程。配有测试引线、2 个辅助接地棒、便携箱、橡胶保护皮套和六节 1.5V AA 电池。

Extech 382253
Extech 382253

接地棒（两件）

Extech 382253 是 382252 接地电阻测试仪的接地棒。可用作替换或备用接地棒。382253 接地棒坚固耐用、轻便，一包两件。

Extech 382254
Extech 382254

Test Leads (5pc)

The Extech 382254 is a replacement set of test leads for the 382252 Earth Ground Resistance Tester Kit. The test leads are color-coded and durable.

Extech 382357
Extech 382357

钳形接地电阻测试仪

382357 是一款钳形接地电阻测试仪，可实现对接地导体的非接触式测量。真有效值交流漏电电流范围为 0.2mA 至 30A，分辨率为 1.000mA。采用可编程数据记录，包含 116 个数据点。其运行无需辅助尖峰。配有 9V 电池、电阻检测板和耐用的金属存储盒。

Extech GRT300
Extech GRT300

4 线接地电阻测试仪

GRT300 可以 4 个量程，测量从 2 到 2000 欧姆的接地电阻。可进行 4 线、3 线和 2 线测试。配备大尺寸双线液晶显示屏。可进行自动 I（电流）和 P（电位）尖峰脉冲检查。具有测试保持功能，方便操作。自动量程、自动归零调节、数据保持和自动关机。交流接地电压。具有超量程和电池低电量提示。配有带鳄鱼夹的测试引线、4 根辅助接地棒、硬质便携箱和八节 1.5V AA 电池。

Extech GRT350
Extech GRT350

4-Wire Earth Ground Resistance/Resistivity Tester

The Extech GRT350 is a 4-Wire Earth Ground Resistance and Resistivity Tester which measures earth ground resistance from 2 Ohm to 2000 Ohm and resistivity from 0.06 ohm-m to 628 ohm-m. The GRT350 supports 4-wire, 3-wire, and 2-wire testing. It has a large dual line LCD, automatic spike check, test hold function, auto ranging, data hold, and auto power off function. This tester can also store and recall up to 200 test results and has over range and low battery indications. Product is complete with test leads with alligator clips, 4 auxiliary earth bars, hard carrying case, user's manual, and eight 1.5 V AA batteries. CE certified with a CAT IV 300 V safety rating.

Extech MG300
Extech MG300

13 Function Wireless True RMS MultiMeter/Insulation Tester

The Extech MG300 is a True RMS Multimeter with a built in insulation resistance tester that features wireless data streaming for remote monitoring and datalogging. By adding insulation testing capabilities to the ubiquitous digital multimeter, electricians are always equipped for insulation testing. This feature helps make the MG300 a more routine part of predictive maintenance with faster troubleshooting and repairs without additional tools. The rugged and waterproof (IP67-rated) combination meter includes a digital insulation resistance tester (or megohmmeter) with 4 different test voltages for measuring resistance up to 4G Ω with 0.001 MΩ resolution. Complete with remote receiver with USB cable, windows compatible software, heavy duty test leads, alligator clip test lead, Type K bead wire temperature probe with adapter, carrying case, and 6 AA batteries.

Extech MG300-ETK
Extech MG300-ETK

Electrical Troubleshooting Kit

The Extech MG300-ETK Electrical Troubleshooting Kit includes three compact tools that are indispensable at a customer site for electrical installation, troubleshooting, and repair. The first tool in the kit is the MG300, a 13 Function Wireless True RMS Multimeter/Insulation Tester featuring 125 V, 250 V, 500 V, and 1000 V test voltages, plus insulation resistance from 0.001 MOhm to 4000 MOhm and many other functions at a CAT IV 600 V safety rating. The second tool is the 42509 Dual Laser IR Thermometer with Color Alert which measures IR temperature up to 510°C (950°F). The third tool in this kit is the MA430T 400 A True RMS AC/DC Clamp Meter with a built in non contact voltage detector, 6 additional functions, and a CAT III 600 V safety rating.

Extech MG302
Extech MG302

13 Function Wireless True RMS MultiMeter/Insulation Tester

The Extech MG302 is a Wireless True RMS Multimeter with a built in insulation resistance tester. By adding insulation testing capabilities to this CAT IV-rated digital multimeter, electrical troubleshooters will always be equipped for the job. The digital insulation resistance tester, or megohmmeter, comes with four different test voltages for measuring resistance up to 4G Ω with 0.001 MΩ resolution. The multimeter also includes useful extras like duty cycle measurements, milliamp readings, and a built-in wireless data recording for safer troubleshooting and maintenance on moving equipment. The MG302 is waterproof (IP67-rated) and comes with a remote USB receiver, Windows compatible software, test leads with alligator clips, Type K bead wire temperature probe with adapter, carrying case, six AA batteries, and a user manual.

Extech MG302-ETK
Extech MG302-ETK

Electrical Troubleshooting Kit

The Extech MG302-ETK Electrical Troubleshooting Kit is a test and measurement kit for electrical installation, troubleshooting, and repair. It features the MG302 True RMS Multimeter/Insulation Tester with 13 functions and wireless PC interface, the 42509 12:1 Infrared Thermometer with a high/low alarm and 2 color display, and the MA430T 400 A True RMS AC Clamp Meter with a built in non contact voltage detector. Complete with test leads, Type K thermocouple bead wire probe, batteries, and hard storage case that provides protection for the meters and their accessories.

Extech MG310
Extech MG310

数字绝缘测试仪

MG310 是一款紧凑型绝缘电阻测试仪，可对电机、传感器和其他工业电气设备进行快速、方便的测试/故障排除。测量范围宽，可在高达 1000V 的电压下测量最高 5.5GΩ 的绝缘电阻。包含一个方便的卡扣式硬质保护壳和软质保护袋，便于将仪表和附件运送到下一个作业现场或安全地存放。具有低电阻测量功能，带归零模式、配备导通蜂鸣器、带背光的 2000 计数双显示、高压和过载指示、自动放电和电压输出警告功能，以及电池低电量指示。配有测试引线、鳄鱼夹、6 节 AA 电池、硬质保护壳和软质便携箱。

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