HT ITALIA HT321 CAT IV 600V Digital Multimeter

HT Italia

 DC Voltage
 AC Voltage
 Resistance
 Continuity test with buzzer
 Diode test
 MAX function
 HOLD function
 Manual Range function
 Auto Power OFF
4413-2 : Test leads
Protection rubber holster
User manual


HT 8000 Data Sheet HT 321 DMM Data Sheet

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SKU: HT ITALIA HT321 Categories: , Tags: ,
HT Italia HT321 CAT IV Digital Multimeter
HT Italia HT321 model is a member of the 320 family of multimeters, which include also model HT322, HT326 and HT327, designed for safety measurement category CAT IV 600V.
The meter performs Voltage AC and DC measures up to 600V and resistance, test continuity and diode test as sub-features.
HT Italia HT321 is in compliance to EN 61010-1 safety standard with double insulation protection.HT32 meter have a large LCD display and each measurement function can be selected with a rotative selector at 6 positions.
Other features are MAX measurement, HOLD function and manual range selection. An AutoPowerOff function is integrated to preserve the internal battery after 15 minutes of idle.
General Specifications
DC Voltage range 200.0mV – 600V
DC Voltage range 200.0mV – 600V
Resistance range 200.0Ω – 20.00MΩ
Operating temperature -5°C to 40°C, <80%HR
Storage temperature -10°C to 60°C, <70%HR
Power supply 2 x 1.5V alkaline batteries type AAA MN2400 LR03 AM4
Sizes 163(L)x88(W)x48(H) mm
Weight (included batteries) 280g


  • This instrument has been designed for use in environments of pollution degree 2 
  • It can be used for VOLTAGE measurements on installations of CAT III 1000V or CAT IV 600V 
  • This instrument is not suitable for AC voltage and current measurements of not sinusoidal signals 
  • Only the original test leads supplied along with the instrument guarantee compliance with the safety standards in force. They must be in a good conditions and, if necessary, replaced with identical ones 
  • Do not test nor connect to any circuit exceeding the specified overload protection. 
  • Do not take measurements under environmental conditions exceeding the limits indicated in § 6.1.1. and § 6.2.1  Make sure that batteries are correctly installed 
  • Before connecting the test probes to the installation make sure that the rotary selector is positioned on the right function 
  • Make sure that LCD and rotary selector indicate the same function