All prices include 18% GST  ·  GST tax invoice on every order

OhmKart

Buying guides.

Straight answers on what to buy and why. For the theory behind the instruments, see the technical library on cieinstruments.in.

Buying guide · 6 min read

How to choose an insulation tester

Test voltage, resistance range, analog or digital, hand-driven or motorised: a plain guide to picking the right insulation tester for motors, cables and switchgear.

Buying guide · 6 min read

How to choose a multimeter: a buyer's guide

True RMS, CAT rating, counts, auto-ranging and bench versus handheld. What actually matters when you buy a digital multimeter in India.

Buying guide · 5 min read

Clamp meter buying guide: AC, DC and True RMS explained

How to choose a clamp meter: AC only versus AC/DC, True RMS, jaw size, current range and the extras that are worth paying for.

Buying guide · 6 min read

Soldering station buying guide: wattage, temperature control and tips

Choosing between a soldering iron and a soldering station, how much wattage you need, and why lead-free and ESD-safe matter.

Buying guide · 5 min read

Bench power supply buying guide: voltage, current, linear or SMPS

How to choose a regulated DC power supply: how much voltage and current you need, linear versus SMPS, and when to pick programmable.

Buying guide · 5 min read

Oscilloscope buying guide: bandwidth, channels and analog versus digital

The five-times rule for bandwidth, how many channels you need, and when an analog scope still makes sense.

Workshop setup · 6 min read

Build a PCB repair bench: the instruments you actually need

A practical list for setting up an electronics repair bench: multimeter, soldering station, hot air, power supply, scope and lighting.

Workshop setup · 5 min read

The electrician's test instrument kit: what to carry and why

A starter and upgrade list of test instruments for maintenance electricians: multimeter, clamp meter, insulation tester, earth tester and phase sequence indicator.

Comparison · 4 min read

Analog or digital? Choosing the right style of test instrument

When a hand-driven analog insulation tester is the better buy, and when digital wins. A straight comparison for field and lab use.

Business buying · 3 min read

Buying test instruments for your business: GST invoice and input credit

Why a proper GST tax invoice matters when your company buys test and measurement instruments, and what to give the seller.