Mastech MS8907 Non-Contact AC Voltage Detector

Quick Start Guide

Important Safety Precautions

Special attention should be paid when using test and measurement instruments. Improper usage may cause electric shock and damage the equipment.

Use proper measurement category (CAT), voltage, and amperage rated probes, test leads, and adapters for the measurement.
Do not use or store the device around explosive gas, vapor, or under high temperature and humidity.
When handling test probes and crocodile clips, keep fingers behind the physical guard.
Examine test leads before use. If insulation is deteriorated, replace them with proper functional test leads.
Connect the common test lead before the live test lead and remove the live test lead before the common test lead.
Before measuring current, ensure the instrument fuses are available and disconnect the power supply to the circuit being tested.
Remove batteries if the device is not used for an extended period or is stored in temperatures above 45°C to prevent battery leakage and damage.

Specifications

Non-Contact AC Voltage Detector (AC Voltage Range)	50~1000V
Frequency	50Hz~60Hz

Product Overview

The Mastech MS8907 is a non-contact AC voltage detector designed for safely identifying the presence of AC voltage without direct contact.

Operating Instructions

Step 1: Battery Installation

Insert batteries into the device as indicated.

Step 2: Voltage Detection

Turn on the device by pressing the power button. A green indicator light will illuminate.
Bring the tip of the detector near an AC voltage source.
If AC voltage is detected, the device will emit an audible beep and the indicator light will turn red.

Diagram Description:

The diagram shows the MS8907 detector. In the first part, it illustrates the battery compartment being opened. In the second part, it shows the detector being brought near an electrical outlet. When voltage is detected, an indicator light turns red and an audible beep is heard.

Certifications and Warranty

The product is certified by Intertek and meets CE and EAC standards. It comes with a 1-year limited warranty.

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