UNI-T UT521 ground tester

UNI-T UT521 grounding tester

UNI-T UT521 grounding tester is a reliable device designed for accurate measurement of grounding resistance in power systems, lightning protection installations and in grounding systems of all kinds of electrical equipment. It allows both simple 2-wire measurement and precise 3-wire measurement. The UT521 offers manual range selection, data hold function, low battery indicator and automatic shutdown. The LCD display with backlighting ensures readability of results in all conditions. The device also features full icon display, double protective insulation, weak contact and overload ("OL") indication. In addition, the tester is CE and UKCA certified, confirming its high quality and safety.

An indispensable tool in the field and in service

Thanks to its lightweight and compact design, the UT521 is ideal for field work, providing convenience and mobility. The manual range selection function allows full control over measurements, and error indicators - such as bad contact and overload indication - increase safety and precision. The tester can quickly perform simple 2-wire tests and accurate 3-wire measurements, making it a versatile tool for both installers and service technicians.

Rugged design and convenience of use

The UT521 tester is designed for intensive use - double insulation effectively protects the user, and the automatic shutdown function saves battery power. The large backlit display makes it easy to work in difficult lighting conditions, and the Data Hold function allows you to conveniently save measurement results. The UNI-T UT521 is an excellent choice for any professional looking for a precise, reliable and easy-to-use ground tester.

Included

• grounding tester
• batteries
• straight test leads with crocodile clamps
• standard test leads with crocodile clamps
• grounding skewer
• carrying bag
• instruction manual

 

ManufacturerUNI-TModelUT521Ground resistance measurement (Ω)0~20 Ω (accuracy: ±(2%+10)); 0~200 Ω (accuracy: ±(2%+3)); 0~2000 Ω (accuracy: ±(2%+3)); 0~40 Ω; 0~400 Ω; 0~4000 ΩAC ground voltage (V) measurement0~200 V (accuracy: ±(1%+4)); 0~400 VFrequency50 Hz / 60 HzNumber of displayed digits2000Manual range selectionSupportedAutomatic shutdownSupported, approximately 10 minutes of inactivityLow battery indicatorBuilt-inData hold functionSupportedData memory20 setsLCD display backlightingBuilt-inFull icon displaySupportedDouble insulation protectionSupportedLow contact indicator ("...Ω")Built-inOut of range ("OL") indicatorBuilt-inSimple 2-wire measurementSupportedPrecise 3-wire measurementSupportedPower supply6 × 1.5 V battery (LR6)Display70.6 × 34 mmProduct colorRed, grayWeight560 gProduct dimensions160 × 100 × 70.5 mm