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Amprobe AMB-25 Digital Insulation Resistance Tester

by Amprobe
1 customer review

List Price: $324.95
Price: $274.06 & FREE Shipping. Details
You Save: $50.89 (16%)
Only 9 left in stock (more on the way).
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  • Insulation resistance meter to test insulation of wires, cables, transformers, and electrical motors
  • Digital meter with automatic range selection
  • Internal memory stores up to 9 test results
  • Measures insulation resistance from 0 to 1,000 megaohms with 250, 500, and 1,000V DC test voltage
  • Safety rated to European Standard EN 61010-1 Category III 1,000V
  • Tests insulation of wires, cables, transformers and electrical motors
  • Selectable test voltages 250V, 500V and 1000V
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$274.06 & FREE Shipping. Details Only 9 left in stock (more on the way). Ships from and sold by Gift-wrap available.

Frequently Bought Together

Amprobe AMB-25 Digital Insulation Resistance Tester + Fluke 1507 Digital Megohmmeter, 50/100/250/500/1,000V Test Voltages, 10 Gigaohms Insulation Resistance, 20 Kilohms Low-Resistance, 600V Voltage Detection
Price for both: $817.56

Buy the selected items together

Technical Details

  • Brand Name: Amprobe
  • Part Number: 2730991
  • UPC: 095969366090

Product Description

The Amprobe AMB-25 insulation resistance tester is a digital meter that measures insulation resistance to help reduce shock hazards and downtime on electrical systems that include wires, cables, transformers, and electrical motors. The tester has automatic range selection for increased safety. The unit measures insulation resistance from 0 to 1,000 megaohms using 250, 500, or 1,000V direct current (DC) test voltage. The internal memory holds up to nine test results. The tester is safety rated to European Standard (EN) 61010-1, Category III, 1,000V. The tester is powered by six AA batteries (included). The AMB-25 is designed for use by electricians and electrical contractors.


Power supply (6) AA batteries (included)
Insulation resistance range 0 to 1,000 megaohms
Test voltages 250, 500, or 1,000V DC
Weight (including batteries) 1.15 lb./520g
Dimensions 9.3 x 4.6 x 2.1 inches/235 x 116 x 54mm (H x W x D)

H is height, the vertical distance from the lowest to highest point; W is width, the horizontal distance from left to right; D is depth, the horizontal distance from front to back.

Electrical test meters report electrical circuit properties, such as voltage, resistance, capacitance, and continuity. Available in handheld or benchtop form, they detect electrical problems in equipment, wiring, and power supplies. A variety of probes, clamps, and leads can be used to connect the meter to a circuit or device. Single-function meters, such as battery testers and voltage testers, measure one property of a circuit, and multimeters measure multiple properties. Electrical test meters display information either in analog form using a needle that moves on a calibrated scale, or in digital form using digits or a graphic representation on an LED screen. Meters have electrical properties that are to be measured and the anticipated range of results, and should have a rating that is higher than the maximum value of the anticipated range. An electrical test meter has multiple settings corresponding to potential ranges of values for the properties it can measure. A manual ranging meter requires the operator to flip through different settings until the correct range is reached. An autoranging meter cycles through range settings automatically until it reaches the correct range.

Amprobe manufactures electrical testing equipment for commercial, industrial, and home use. The company was founded in 1948 and is headquartered in Everett, WA.

What’s in the Box?

  • AMB-25 Insulation Resistance Tester
  • (1) Set test leads
  • (6) AA batteries (installed)
  • Instructions

Product Information

Technical Details
Part Number 2730991
Item Weight2 pounds
Product Dimensions10.2 x 5.7 x 3.5 inches
California residentsClick here for Proposition 65 warning
Item model numberAMB-25
Item Package Quantity1
Number of Handles1
Display StyleLiquid Crystal Display (LCD)
Batteries Required?No
Technical Specification
Additional Information
Best Sellers Rank #214,837 in Home Improvement (See top 100)
Shipping Weight2 pounds (View shipping rates and policies)
Domestic Shipping Currently, item can be shipped only within the U.S. and to APO/FPO addresses. For APO/FPO shipments, please check with the manufacturer regarding warranty and support issues.
International Shipping This item is not eligible for international shipping. Learn More
Date First AvailableFebruary 14, 2006
Warranty & Support

Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.
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Most Helpful Customer Reviews

By Btaylor on February 23, 2013
Verified Purchase
Good start to saving money on motor repair and motor diagnostics when a regular meter isn't enough a little difficult. To understand directions
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Amprobe AMB-25 Digital Insulation Resistance Tester
This item: Amprobe AMB-25 Digital Insulation Resistance Tester
Price: $274.06
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