UT258A Plus AC/DC Leakage Current Clamp Meter

The UT258A+ is a professional AC/DC leakage clamp meter for electricians in data centers, commercial buildings, and renewable energy plants. It detects both AC and DC leakage current—unlike AC-only meters—making it ideal for solar farms, DC UPS, and EV charging.

With True RMS, Bluetooth remote monitoring, and CE/cETLus certification, it’s a reliable tool for leakage troubleshooting and preventive maintenance in mixed AC/DC environments.

Features of UT258A+ 20mm AC/DC LEAKAGE CURRENT CLAMP

Certifications (UT258A+ only): CE, ETL, RED, FCC

1. Jaw size: 20mm

2. AC/DC current: 40A

3. Auto range measurement

4. BT App: UNI-T Smart Measure

5. Auto-polarity test

6. CAT III 600V

   Specifications

   	UT258A+
   Function	Range	Resolution	Accuracy
   AC Current (A)	4000mA	1mA	±(1.5%+5)
   	40.00A	0.01A	±(1.3%+5)
   DC Current (A)	4000mA	1mA	±(1.5%+5)
   	40.00A	0.01A	±(1.3%+5)
   Features
   True RMS	yes
   Jaw size	20mm
   Display count	4000 Counts
   Sampling rate	2 times/s
   Auto range	yes
   MAX/MIN/AVG.	N/A
   Dual display	N/A
   Auto-polarity	YES, DCA measurement
   LCD display	HTN LCD
   Backlight	yes
   Data storage	N/A
   Blutooth	BT5.X
   Over-range indication	YES
   Low battery indication	yes
   Auto power off	Around 15 minutes
   Power supply	6LR61 9V
   Safety regulation	EN 61010-1：2010+A1:2019； EN IEC 61010-2-032:2021+A11：2021； EN 61326-1:2013, EN61326-2-2:2013
   Working environment	0℃～40℃ ；≤75%RH     Altitude < 2000m
   Storage environment	Storage Temperature: -10℃ ~ 60℃    Storage Humidity: <80%RH
   Pollution degree	Class 2
   Overvoltage category	CATⅢ 600V
   Certification	CE, ETL