Measuring Instruments and Testers

Measuring Instruments and Testers for Workshops, Service Centers, and Home Use

This collection features VEVOR electronic measuring devices and testers—ranging from air quality monitors and multimeters to automotive diagnostic testers and metal detectors. The devices are designed for electricians, auto repair shops, HVAC professionals, and discerning homeowners.

Air Quality and CO₂ Monitors

8-in-1 and 9-in-1 monitors with PM1.0/PM2.5/PM10, formaldehyde, TVOC, CO₂, temperature, and humidity measurement, as well as NDIR CO₂ controllers with sensor cables—for offices, schools, greenhouses, and homes.

Electric measuring instruments

TRMS digital multimeter (6,000 counts), EMF/RF radiation detector, infrared thermometer (–40…1,500 °C with two lasers, a digital readout system for machine tools, and a UV inspection lamp for leak detection.

Car Diagnostics

Battery testers (6–36 V) with a TFT display and a 4–6 m cable, engine cylinder compression and leak testers, ultrasonic fuel injector testers, and carburetor synchronization manometers.

Metal Detectors and Water Testers

IP68 waterproof metal detectors with an LCD display and Bluetooth headphones for searching for gold and treasures, precision probes, as well as a pH tester (0–14) with automatic calibration for drinking water and hydroponics.

Frequently Asked Questions

What does TRMS mean for a multimeter?

True RMS measures the precise value of alternating current even for non-sinusoidal signals (frequency converters, LED power supplies)—a standard multimeter has an error of 10–40% in such cases.

What is a normal CO₂ level in a room?

Outdoors, around 400 ppm; in a well-ventilated room, up to 800 ppm; above 1,000 ppm, concentration is impaired; above 2,000 ppm, immediate ventilation is required.

For laser levels, see the " Lasers and Levels" collection; for inspection cameras, see " Endoscopes"; and for thermal imaging cameras, see " Thermal Imaging Cameras."