# HT Italia HT327 CAT IV TRMS Digital Multimeter # HT Italia HT327 CAT IV TRMS Digital Multimeter ## Key Features At A Glance - Safety rated CAT IV 600 V / CAT III 1000 V per EN 61010-1 with double insulation - True RMS (TRMS) measurement on AC voltage and AC current ranges - DC voltage measurement to 1000 V and AC TRMS voltage to 750 V - DC and AC current measurement to 10 A, protected by a 10 A / 1000 V fuse - Frequency measurement up to 400 MHz and capacitance measurement up to 40 mF - Resistance to 40 MΩ, plus diode test and continuity buzzer (R < 35 Ω) - 4-digit LCD, 3999-count, with bargraph, backlight and OL over-range indication - HOLD, MX/MN, REL, PK peak and manual RANGE functions; auto power-off after 30 minutes The HT327 is a CAT IV digital multimeter with true-RMS (TRMS) measurement capability, manufactured by HT Italia SRL of Faenza, Italy. It is a handheld bench-and-field instrument built around a 4-digit LCD with a maximum reading of 3999 counts, a bargraph, automatic polarity indication, backlight, and an "OL" over-range indication. A multimeter measures fundamental electrical quantities, and the HT327 covers a broad set of them in a single unit: DC and AC TRMS voltage, DC and AC TRMS current, resistance, frequency, capacitance, diode test, and continuity. This range of functions lets a technician verify voltage levels, current draw, component values, and signal frequency from one handheld instrument. ValueTronics stocks and holds its own inventory in a 20,000 sq ft secure warehouse at 1675 Cambridge Drive in Elgin, Illinois. ## Product Core & Specifications Specification Value DC Voltage (Accuracy: ±(%rdg + digits) at 23°C ± 5°C, <75%HR) 400.0 mV (res. 0.1 mV) ±(0.5%rdg+2dgt) 4.000 V (res. 0.001 V) ±(0.5%rdg+2dgt) 40.00 V (res. 0.01 V) ±(0.5%rdg+2dgt) 400.0 V (res. 0.1 V) ±(0.5%rdg+2dgt) 1000 V (res. 1 V) ±(1.0%rdg+2dgt) Input impedance 10 MΩ // <100 pF Overload protection 1000 VDC / 750 VACrms AC TRMS Voltage (Accuracy 45 ÷ 400 Hz) 400.0 mV (res. 0.1 mV) Not specified 4.000 V (res. 0.001 V) ±(1.3%rdg+5dgt) (50 ÷ 300 Hz) 40.00 V (res. 0.01 V) ±(1.3%rdg+5dgt) (50 ÷ 300 Hz) 400.0 V (res. 0.1 V) ±(1.3%rdg+5dgt) (50 ÷ 300 Hz) 750 V (res. 1 V) ±(1.2%rdg+5dgts) (50 ÷ 500 Hz) Input impedance 10 MΩ // <100 pF Overload protection 1000 VDC / 750 VACrms DC Current 400.0 µA (res. 0.1 µA) ±(1.0%rdg+2dgt) 4000 µA (res. 1 µA) ±(1.0%rdg+2dgt); voltage drop <5 mV/µA 10.00 A (res. 0.01 A) ±(1.0%rdg+2dgt); voltage drop 2 V max Overload protection 600 VACrms; Fuse 10A/1000V AC TRMS Current (50 ÷ 500 Hz) 400.0 µA (res. 0.1 µA) Not declared 4000 µA (res. 1 µA) Not declared 10.00 A (res. 0.01 A) ±(1.5%rdg+5dgt) (50÷399 Hz); ±(2.0%rdg+5dgt) (400÷500 Hz); voltage drop 2 V max Overload protection 600 VACrms; Fuse 10A/1000V Resistance 400.0 Ω (res. 0.1 Ω) ±(1.0%rdg+5dgts) 4.000 kΩ (res. 0.001 kΩ) ±(1.0%rdg+5dgts) 40.00 kΩ (res. 0.01 kΩ) ±(1.0%rdg+5dgts) 400.0 kΩ (res. 0.1 kΩ) ±(0.7%rdg+2dgts) 4.000 MΩ (res. 0.001 MΩ) ±(1.0%rdg+2dgts) 40.00 MΩ (res. 0.01 MΩ) ±(1.5%rdg+5dgts) Open voltage about 0.45 V Overload protection 600 VACrms Diode Test Resolution 10 mV Accuracy ±(1.5%rdg+5dgt) Open voltage <3 VDC Overload protection 600 VACrms Continuity Test Buzzer R < 35 Ω Open voltage about 0.5 VDC Overload protection 600 VACrms Frequency 4.000 kHz (res. 0.001 kHz) Sensitivity >1.5 VACrms <5 VACrms 40.00 kHz (res. 0.01 kHz) Sensitivity >1.5 VACrms <5 VACrms 400.0 kHz (res. 0.1 kHz) Sensitivity >1.5 VACrms <5 VACrms 4.000 MHz (res. 0.001 MHz) ±(0.01%rdg+1dgt) 40.00 MHz (res. 0.01 MHz) ±(0.01%rdg+1dgt) 400.0 MHz (res. 0.1 MHz) Not declared; Sensitivity >2 VACrms <5 VACrms Overload protection 600 VACrms Minimum pulse duration 25 ns Duty cycle 30% ≤ Duty Cycle ≤ 70% Capacitance 4.000 nF (res. 0.001 nF) ±(3.0%rdg+10dgt) 40.00 nF (res. 0.01 nF) ±(3.0%rdg+10dgt) 400.0 nF (res. 0.1 nF) ±(3.0%rdg+10dgt) 4.000 µF (res. 0.001 µF) ±(2.0%rdg+8dgt) 40.00 µF (res. 0.01 µF) ±(2.0%rdg+8dgt) 400.0 µF (res. 0.1 µF) ±(2.0%rdg+8dgt) 4.000 mF (res. 0.001 mF) ±(5.0%rdg+20dgt) 40.00 mF (res. 0.01 mF) ±(5.0%rdg+20dgt) Overload protection 600 VACrms Display Type LCD display, 4 digit with maximum reading 3999 counts with sign and decimal point and bargraph Polarity Automatic polarity indication Backlight Yes Over range “OL” over range indication Features Functions HOLD; MX/MN (maximum and minimum value); RANGE (manual selection); REL (relative measurements); PK (peak measurements) Auto Power OFF After 30 minutes of don't work Low battery indication Battery symbol appears when battery voltage is low General Operating temperature 0°C to 40°C, <80%HR Storage temperature \-20°C to 60°C, <70%HR Altitude max 2000 m Pollution degree 2 Insulation Double insulation Power supply 1 x 9V alkaline battery type NEDA1604, JIS006P, IEC6F22 Sizes 163(L) x 88(W) x 48(H) mm Weight (included batteries) 400 g Applied standards (LVD) EN 61010-1 CAT IV 600V – CAT III 1000V Applied standards (EMC) EN 60326 > **Important:** Maximum inputs: 1000 V DC / 750 V AC rms. Safety rating: CAT IV 600 V, CAT III 1000 V per EN 61010-1. Current ranges are protected by a 10 A / 1000 V fuse. ## About this New unit This is a brand-new, factory-sealed unit, supplied exactly as it arrives from the manufacturer and backed by the full manufacturer warranty. For the exact configuration, available options, included accessories, or current lead time for your application, our Test Architects can confirm the details before you order. ValueTronics supplies both new and used test and measurement equipment. New units ship factory-sealed, exactly as received from the manufacturer; every used unit is inspected and functionally verified in-house at our 20,000 sq ft secure facility in Elgin, Illinois before it ships. Our Test Architects can help you select the condition, calibration, and configuration that fit your application. **Please review the Manufacturer's Data Sheet to verify published specifications. Feedback on this webpage is always welcome — please reach out to your Test Architect at any time for questions or concerns. Thank you, we truly appreciate you being our customer.** ## Details - **Price:** 335.0 USD - **Vendor:** HT Italia - **Type:** Multi Met - **Tags:** HT Instruments, Manufacturers, Meters & DAQ, Multimeter, product_manual_group_3, Product_new ## Variants | Variant | Price | Available | |---------|-------|-----------| | Default Title | 335.00 USD | In stock | ## Images - HT327 HT Instruments Multimeter --- > Source: [ValueTronics](https://valuetronics.com/products/ht327-ht-instruments-multimeter-new) > Updated: 2026-06-20