The LS Series are an economical, indispensable collection of tools with a variety of uses in engineering, design, troubleshooting, or service fields.

Direct reading - No fumbling with multiple slide or rotary switches. The IET family of digital substituters uses convenient side by side thumbwheel switches. Simply dial in the desired values and use.

Accurate - In addition to standard 1% economical units, tolerances of 0.1%, 0.05%, 0.01%, and others are available.

Broad choice of standard and optional models with many powerful features- 
A full line of standard substituters will satisfy most requirements. Other IET families of precision products include:

• Laboratory standards
• Transfer standards
• Programmable control
• RTD simulation
• High power
• Very high resistance

Error proof - Since the impedance values are set and read directly, no mistakes can be made as with rotary or slide switch decade boxes. No need to examine and sum groups of switches — simply read one number.

Color coded - Different colored switches separate the various impedance ranges.

Compact, convenient, and rugged - Made of high impact plastic, these substituters are very portable and reduce clutter on a busy lab bench.

Options:

• Shielded case with ground ing post
• Panel mounting
• Low residual impedance switch
• Protection fuse
• Programmable control