HF-MT-504 Contactless Electrical Tester

Product Introduction

HF-MT-504 Contactless Electrical Tester is a new member of our electrical inspection instrument family. Developed based on rich manufacturing experience and customer feedback, it maintains our consistent high‑quality standards.

Suitable for field and laboratory use, this all‑in‑one instrument integrates non‑contact meter reading, high/low‑voltage CT ratio test, high‑voltage proximity alarm, transformer nameplate checking, narrow‑space detection, photo and video capture, featuring outstanding cost‑performance.

Functional Features

1. Flexible endoscopic probe: Integrates infrared meter reading, photographing and fill‑light. Compact size enables wiring inspection and data reading in hard‑to‑access areas.
2. Supports infrared data collection for meters inside unopened meter boxes.
3. Wireless signal transmission for wireless high‑voltage current clamps to ensure complete operation safety.
4. Acquires primary current via HV clamp; calculates CT ratio from primary & secondary current.
5. Main unit and wireless HV clamps adopt high‑performance lithium‑ion batteries, standby time ≥8 hours after full charge.
6. Main unit is equipped with high‑voltage proximity alarm for operator safety reminder.
7. Realizes photographing and inspection for high‑mounted transformer nameplates.
8. Works with dedicated tablet APP for on‑site photo & video recording; calculates, stores and exports data from endoscopic probe and wireless modules.
9. All functions can be displayed and configured through the custom tablet APP.
10. All modules are compatible with insulating operating poles.

Performance Specifications

Item	Specifications
Primary Current	0‑600 A (wireless high‑voltage clamp input)
Max measurable conductor diameter (HV clamp)	Φ48 mm
Barrier‑free wireless transmission distance	100 m
Power Consumption	＜15 W
Power Supply	AC220V
Operating Conditions	Temperature: ‑25℃ ~ +45℃; Relative Humidity: 40%‑95%
Dimensions	Main Unit: 1142×350×350 mmWireless HV Clamp: 265×70×33 mm

FAQ — Contactless Electrical Tester

Q1: What core functions does the Contactless Electrical Tester provide?

A1: It performs non‑contact infrared meter reading, CT ratio calculation, high‑voltage proximity warning, narrow‑space inspection, on‑site photo and video recording for power‑system field work.

Q2: What is the advantage of its flexible endoscopic probe?

A2: The compact multi‑function probe supports infrared reading and fill‑light shooting. It accesses cramped, hard‑to‑reach spots and reads meter data without opening meter boxes.

Q3: How does the wireless high‑voltage clamp ensure safety during operation?

A3: It adopts wireless signal transmission instead of wired connection. All modules can connect to insulating poles, isolating operators from live high‑voltage circuits.

Q4: What is the battery performance of this tester?

A4: Both main unit and wireless HV clamps use high‑performance lithium‑ion batteries. The standby time reaches no less than 8 hours after one full charge.

Q5: How to process the field‑collected test data?

A5: Match with the custom tablet APP. Users can view, set functions, take photos/videos, as well as calculate, store and export all acquired working data.

Q6: What are the limits for the wireless high‑voltage clamp?

A6: It measures 0‑600A primary current for conductors up to Φ48 mm, with 100‑meter barrier‑free wireless transmission distance.

Q7: What working environment is this instrument applicable to?

A7: It runs on AC220V power. Operates within ‑25℃~+45℃, relative humidity 40%‑95%, well‑adapted to various outdoor power inspection scenarios.