
380320 Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $145.00 | Condition is Used, Extech 380320 Analog High Voltage Megohmmeter 250 500 & 1000VDC, FREE SHIPPING | 99.9% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $250.00 | Condition is New, Extech 380320 1000v Autoranging Digital Megohmmeter, shipping cost = $13.59 | 100.0% |
![]() | $309.00 | Top Pick! Condition is New, Extech 380320: Insulation Tester, Analog, FREE SHIPPING | 100.0% |

The EXTECH Model 380320 Analog Insulation Tester is a versatile and reliable instrument designed for measuring the insulation resistance and dielectric strength of electrical components and systems. This tester is an essential tool for electricians, maintenance technicians, and quality control engineers to ensure the safety and reliability of electrical equipment.
The EXTECH 380320 features a user-friendly analog design with a large, easy-to-read dial that displays the insulation resistance value in megohms (M ). The tester can measure insulation resistance from 50 ohms to over 1000 M and has a test voltage range of 250V to 10,000V. The tester also includes a built-in high-voltage warning system that alerts the user when the test voltage is applied.
The tester's design includes a rugged, compact case with a built-in carrying handle for easy transportation. It also features a long test lead with alligator clips and a test electrode with a flexible, insulated tip that can be used for testing various types of components and surfaces.
The EXTECH Model 380320 Analog Insulation Tester is not only accurate but also safe to use. It includes overload protection and short circuit indicators to prevent damage to the tester or the components under test. The tester also has a built-in self-test function that verifies the instrument's internal components and calibration to ensure accurate measurements.
The EXTECH 380320 Analog Insulation Tester is an essential tool for anyone who works with electrical components or systems. Its user-friendly design, accuracy, and safety features make it a reliable and indispensable tool for ensuring the safety and reliability of electrical equipment. Whether you are performing routine maintenance or troubleshooting complex electrical problems, the EXTECH Model 380320 Analog Insulation Tester is the ideal tool for the job.
The Extech Model 380320 Analog Insulation Tester is a popular choice for electrical technicians and maintenance personnel due to its simplicity and versatility. Here are some pros and cons that can help you make an informed decision about purchasing this tester.
Pros:1. Analog Display: The analog display provides a more intuitive and direct way to read and interpret insulation resistance results. This can be particularly useful for technicians who need to make quick assessments in the field.
2. Wide Testing Range: The Extech 380320 can test insulation resistance from 200 ohms to over 1000 megohms, making it suitable for testing a wide range of electrical equipment.
3. Rugged Design: The tester is designed to be durable and can withstand rough handling in the field. It has a water-resistant case and a sturdy probe design that can withstand high voltage and current.
4. Easy to Use: The tester is relatively easy to use, even for those without extensive electrical testing experience. It requires minimal setup and calibration, and the results are easy to read and interpret.
Cons:1. Limited Features: The Extech 380320 is a basic insulation tester and does not offer advanced features such as temperature compensation or data logging.
2. Manual Testing: Since it is an analog tester, the results are not automatically recorded or stored. Technicians must manually record the results for future reference.
3. Limited Battery Life: The tester uses 6 AA batteries, and the battery life is relatively short, particularly when the backlight is used extensively.
4. Limited Input Voltage: The tester has a maximum input voltage of 1000 volts, which may not be sufficient for testing some large electrical systems.
Conclusion:The Extech Model 380320 Analog Insulation Tester is an excellent choice for electrical technicians and maintenance personnel who need a simple, reliable, and cost-effective tester for routine insulation resistance testing. Its rugged design, wide testing range, and intuitive analog display make it a popular choice for those working in the field. However, it may not be suitable for those who require advanced features, long battery life, or high input voltage capabilities. Ultimately, the decision to purchase the Extech 380320 Analog Insulation Tester depends on the specific requirements of your electrical testing needs.
Recommendation:If you are looking for a basic and cost-effective insulation tester with a rugged design and intuitive analog display, the Extech Model 380320 Analog Insulation Tester is an excellent choice. However, if you require advanced features, long battery life, or high input voltage capabilities, you may want to consider other digital insulation testers that offer more advanced features.
Details:
So buy worry free. Earth bars are a great accessory for high voltage applications. Color: green. Replacement earth bars.
Our opened box items are in great condition. Extech 380320 analog insulation tester green: is discontinued by manufacturer: no. Brand: Extech. This is an open boxed item.
A great way to get a lot more for your money. Power source: battery powered. Manufacturer: Extech. Item model number: 380320.
Typically the item is 100% brand new in a replaced box. Product dimensions: 7.9 x 3.6 2 inches; 1.21 pounds.
specifications testmultimeters:
- brand: Extech
- mpn: 380320
- is discontinued by manufacturer: No
- product dimensions: 7.9 X 3.6 X 2 Inches; 1.21 Pounds
offer testmultimeters:
- options: ship-to-home
- availability: in stock
- started: june 20, 2025
- in stock #: 3
- sold #: 16
- prices: $145.00–$309.00
- item condition:
- Used
- New
seller testmultimeters:
- rating: 96.0%
- # reviews: 10272
- city: us
payments testmultimeters:
- other
- credit card: mastercard
- wallet: paypal
general testmultimeters:
- category: Business & Industrial > Test, Measurement Inspection > Detectors > Multimeters
returns testmultimeters:
- policy: no returns
shipping testmultimeters:
- service: standard
- type: fixed
- class: standard
- transit: 5-12 days
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