HT Instruments

18/05/2026

PVCHECKs-ONE Tutorials
Commissioning tester for PV system up to 1000V / 30A

tutorial:

PVCHECKS-ONECommissioning tester for PV system up to 1000V / 30A

13/04/2026

⚡️ Stop Chasing Ghost Trips! Detect Leakage Currents with Surgical Precision.
Are you tired of troubleshooting RCDs that trip for no apparent reason? In modern private and industrial electrical systems, hidden leakage currents are often the culprit, leading to costly downtime and frustration.

Introducing the New HT77C, the high-precision clamp meter specifically engineered to detect what standard tools miss.

🔍 Why the HT77C is a Game-Changer for Professionals:

Extreme Sensitivity: Accurately measure leakage currents starting from as low as 10µA.

Wide Range: Versatile performance from 10µA up to 60A AC, making it suitable for both micro-leakage detection and standard load checks.

Root Cause Analysis: Specifically designed to define and locate leakages that trigger RCD trips, saving you hours of manual searching.

Built for the Field: Compact, ergonomic design for easy access into crowded electrical panels and tight spaces.

01/04/2026

FLASHMETER – Precision and Safety in Your Pocket

FLASHMETER is a compact digital multimeter built for professionals who demand reliability, speed, and maximum safety in every working condition.

Thanks to TRMS technology, it ensures accurate voltage measurements up to 600V, even in the presence of distorted signals. The autorange function allows automatic resistance measurement simply by connecting the test leads—no manual selection required.

Maximum Safety, Certified Performance

FLASHMETER is developed in compliance with IEC/EN61010-1 standards and features advanced protection with double insulation (CAT IV 600V), ensuring safe operation even in demanding environments.

Smart Features for Everyday Use
Integrated white LED torch for working in low-light conditions
Non-contact AC voltage detection probe for quick and safe checks
IP67 rating, making it water-resistant and suitable for harsh environments

Compact. Reliable. Ready to Work.

FLASHMETER combines essential measurement functions with rugged design, making it the ideal tool for electricians, technicians, and maintenance professionals who need performance and durability in a single device.

🔗 Learn more: https://www.ht-instruments.com/en/products/digital-multimeters/trms-multimeters/flashmeter/

25/03/2026

Discover the I-V600 ⚡

Advanced multifunction instrument for I-V curve measurements up to 1500V / 40A, designed for modern photovoltaic systems.

✔ Test PV modules & strings (IEC/EN60891, IEC/EN62446)
✔ Compatible with mono & bifacial panels
✔ Database with 30,000+ PV modules (HT AGORÀ)
✔ Remote irradiance measurement via SOLAR03 (Bluetooth)

📊 Instantly compare measured vs nominal values and verify system performance directly on site.

Accurate. Fast. Reliable.

17/03/2026

⚡ Accuracy, efficiency, and total control over your PV systems.
With PVCHECKs-PRO, commissioning and maintenance are faster, smarter, and more reliable.

Multifunction commissioning tester up to 1500V / 40A capable of taking the following measurements:

• Insulation measurement on PV modules/strings/fields up to 1500VDC (with PI and DAR calculation)

• Open circuit voltage Voc up to 1500V in accordance with IEC/EN62446

• Short circuit current Isc up to 40A in accordance with IEC/EN62446

• Continuity of protective conductors with 200mA

• Polarity

• GFL function for fault finding on strings and PV modules

• Tests on single-facial and bi-facial modules

• Automatic acquisition of the cell calibration value (by using suitable cells)

• OPT function for insulation testing on MLPE-equipped PV strings (including optimizers and RSDs), allowing measurements to be performed without the need to disconnect the MLPE devices*

*Soon available with the new update.

🔗 Learn more: https://www.ht-instruments.com/en/products/photovoltaic-testers/commissioning-and-maintenance/pvchecks-pro/

13/03/2026

💪 Built for the toughest job sites.

Meet IRONMETER, the rugged True RMS multimeter designed to keep working wherever you do. Its ultra-resistant body can withstand drops up to 3 meters, while ensuring reliable measurements every time.

⚡ True RMS precision
🔦 Integrated LED flashlight for low-light environments
🔌 Measurements up to 600V AC/DC and 10A

When durability meets precision.

Discover more 👉 https://www.ht-instruments.com/en/products/digital-multimeters/trms-multimeters/ironmeter/

12/03/2026

Now available: PVCHECKs-ONE

The new advanced instrument for commissioning tests and fault finding on live photovoltaic systems.

Thanks to the innovative OPT function, testing can be performed on PV strings MLPE-equipped (optimizers and/or RSDs) without disconnecting them from the modules — faster, safer, and fully compliant with modern PV systems

⚡ Test up to 1000 V / 30 A
🔍 Ground fault locator for fast troubleshooting
☀️ All commissioning tests with a single GO command

29/07/2025

🔧 I-V600 – Advanced I-V Curve Tracer for PV Systems ☀️
Take photovoltaic testing to the next level with the I-V600, a multifunction instrument designed for I-V curve measurements up to 1500V and 40A.

✅ Ideal for maintenance and troubleshooting of PV systems
✅ Compatible with mono-facial and bi-facial modules
✅ Supports the latest high-efficiency PV technologies

📊 Key Features:

I-V curve tracing according to IEC/EN60891

Remote unit SOLAR03 with Bluetooth, up to 100m range

Supports up to 3 reference cells for front and rear-side irradiance (IEC TS 60904-1-2)

Access a 30,000+ module database via HT AGORÀ software

Industry-leading throughput: up to 6.5 MW/hr, no cooldown required

Automatic cell calibration recognition — no manual setup, no errors

Reliable performance in harsh environments — even without direct communication

Clear OK/NOT OK results based on manufacturer data

28/07/2025

Power in your hands. 💪

The HT3013 TRMS clamp meter measures AC/DC current up to 400A — plus voltage, resistance, frequency, and more.
Built for safety. Designed for pros. ⚡🔧