Gossen Metrawatt METRISO TECH Insulation Tester, 50 V Minimum, 1 kV Maximum, 199 GΩ Resistance, Digital and Analogue M550P

Gossen Metrawatt M550P METRISO TECH insulation tester is a high-performance instrument designed for professionals requiring accurate and efficient validation of electrical insulation and resistance measures. It supports testing voltages from 50 V minimum to 1,000 V maximum and can measure insulation resistance up to 199 GΩ, making it suitable for diverse industrial, laboratory, construction, and HVAC applications.

This tester features both digital and analogue displays with backlighting for precise readings under varying lighting conditions. Its intelligent filtering activates measurement-dependent functions that enhance accuracy when measuring very high resistances. Safety is emphasized through acoustic signals and LED indications for dangerous contact voltages, as well as robust overvoltage protection and fuse links that guard the device during inadvertent mains connections.

Designed according to major international standards including DIN VDE 0100 and EN 61557 parts 2 and 4, the meter provides comprehensive insulation and low-resistance testing capabilities. It is compliant with CE safety approvals and supports the highest safety categories CAT II, CAT III, and CAT IV with appropriate voltage ratings, ensuring reliable and secure operation in challenging environments.

The compact and rugged construction supports frequent use in field service, manufacturing sites, and electrical maintenance tasks. The instrument is powered by AA batteries offering portability and ease of use. It comes supplied with a DAkkS calibration certificate, set of batteries, carrying strap, alligator clips, KS17-4 cable set, and comprehensive operating instructions.

Enables quick and effective testing of electrical insulation and resistance levels. Complies with standards DIN VDE 0100, EN 61557-2 and EN 61557-4 for insulation and low-resistance measurements. Equipped with intelligent filter for accurate high resistance measurement with backlit display.

Features AC and DC voltage testing up to 1000 V with acoustic and LED warnings for dangerous contact voltage. Rugged and compact design suitable for harsh industrial, laboratory, and construction environments. Includes protective overvoltage and fuse link safeguards for safe operation under connected power conditions.

Powered by AA batteries with a test current of 5 mA ensuring portability and field usability. Safety categories: CAT II, CAT III, and CAT IV with voltage ratings of 1, 300, and 600 kV respectively. Product dimensions: 225mm length, 130mm width, 140mm height with a weight of 1.4 kg.

Manufactured in Germany with CE certification.

This insulation tester is ideal for electrical maintenance in industrial settings, laboratories, construction sites, electrical installation verification, HVAC system testing, and other commercial and manufacturing applications requiring precise, reliable insulation resistance measurement.

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