All 120V power tools that rates up to 20A can be tested. 

The Model 350 SHORT STOP offers solid state electronic circuits, dependable neon displays, and components recognized by Underwriters Laboratories. 

Tester activates a Short-Line lamp and locks out all other circuits if line to line impedance of item under test is three ohms or less.  This protects the equipment under test and the tester’s internal circuits.

Tester activates a Short-Case lamp if the line to case fault current exceeds 10 milliamps.

Tests quality of ground wire
The quality and continuity of the ground circuit is measured. Poor quality ground connections are rejected. 

Verifies tool performance
Dual-scale ammeter reads the current drawn by tool. This helps identify defective bearings, gear trains, shorted coils or poor brush contact.

A built-in extension cord test checks continuity and ground wire resistance.

Displays actual leakage current with good, marginal and danger levels clearly shown.

Current draw by the product is displayed on a dual scale ammeter.  The upper scale reads 0-20 amperes, the lower scale reads 0-5 amperes. This helps identify defective bearings, gear trains, shorted coils or poor brush contact.

The Number 1 to 5 test buttons and the PASS and FAIL lamps make it so easy that employees are encouraged to check their tools before each use.

For over four decades Sotcher Measurement, Inc. has provided latest state-of-the-art electrical test equipment that is easy to use and maintain. Our customers rely on our products to verify the safety of the electrical devices they rent, use or manufacture. We feel this commitment very deeply. In response, we do our utmost to insure that the products we offer are of the highest quality and performance, consistent with good value.

We continue to design, manufacture and service all of our products in the United States. We are proud to be able to offer our customers fine American products that are easy to use at a practical price.