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Reliance Controls Ammeter/Wattmeter Digital Appliance Load Tester 1 each

Take control of your home energy use with the Reliance Controls Ammeter/Wattmeter Digital Appliance Load Tester. This compact inline tester plugs between outlet and appliance to de…

Reliance Controls MPN THP103 In Stock & Ready to Ship
Local Price Check i Local stores may price this as low as $35.99. Our online price is $39.99.
$39.99
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About Product Overview

Take control of your home energy use with the Reliance Controls Ammeter/Wattmeter Digital Appliance Load Tester. This compact inline tester plugs between outlet and appliance to deliver real-time readings of current (amps) and power (watts) on a clear digital display, so you can identify energy hogs, prevent overloads, and plan safer, more efficient outlets and cords.

Designed for reliability, the tester comes in a durable blue housing with carded packaging and is UL Listed for safety. It provides a straightforward, fixed-range measurement experience (no auto-ranging to complicate readings), giving you fast, trustworthy data without guesswork. Each package includes 1 unit.

Key benefits that matter

  • Clear digital readout shows amperage and wattage in real time for instant insight into any connected appliance.
  • Inline testing — simply plug it between the outlet and the device to measure draw and consumption without any extra tools.
  • Safety and reliability — UL Listed, built for everyday use, and backed by a 1-year warranty.
  • Compact, portable design in a blue housing that’s easy to store in a toolbox or on a shelf.
  • One-unit package with carded packaging, ready for immediate use or gifting to a DIYer or homeowner.

What problems does it solve?

Whether you’re wiring a new workspace, selecting a surge protector, or simply trying to trim your energy bill, this Ammeter/Wattmeter helps you:

  • Identify power-hungry devices (space heaters, hair dryers, large appliances) before they trip a breaker or overload an outlet.
  • Estimate actual energy consumption by comparing reported wattage to your electricity plan’s rates, enabling smarter purchasing and usage habits.
  • Plan safe power distribution by ensuring total load stays within your circuit’s rating.

How to use

  1. Plug the tester into a standard outlet.
  2. Plug the appliance into the tester.
  3. Read the digital display to see current (amps) and power (watts) in real time.
  4. Assess whether the appliance’s draw fits your circuit and cords, and adjust usage accordingly.

Who this is for

Ideal for homeowners, renters, DIY enthusiasts, and professional installers who want quick, trustworthy measurements of appliance current and wattage without complex tools. Perfect for testing heaters, kitchen appliances, electronics, power strips, and extension cords to prevent overloads and plan energy-saving setups.

Why this stands out

Unlike generic testers, this Reliance Controls model combines a dedicated Ammeter/Wattmeter with a simple, fixed-range digital display, UL safety certification, and a practical in-line design — all backed by a solid 1-year warranty. It’s a practical, focused tool built for everyday power checking, not a multi-function gadget that overpromises and underperforms.

The Details Specifications

Brand Reliance Controls
SKU 3204096
UPC 851890000041
Unit 0
Case Pack Quantity 3 per case
Retail Unit Quantity 1
Unit of Measure 0 0
Dimensions (L × W × H) 8 × 3 × 11
Weight 1 lbs
Cubic Feet 0.11246 ft³
Country of Origin CHINA
Safety Data Sheet (SDS) Manufacturer documentation · opens in new tab

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