The Klein Tools CL1100 is a 400A AC/DC clamp meter with temperature measurement via thermocouple, rated CAT III 600V. It measures AC/DC voltage, AC/DC current, resistance, capacitance, frequency, duty cycle, and temperature. The meter includes a backlit display, work light, magnetic mount, lead storage, non-contact voltage tester, and analog bar graph, making it suitable for electricians and HVAC technicians handling diverse measurement tasks. The CL1100 is no longer in production. Backed by Klein Tools' 1-year limited warranty.
Is the CL1100 still available?
No — the CL1100 has been discontinued. The CL490 is its current equivalent.
What was the CL1100?
A 400A average-sensing AC clamp meter with thermocouple temperature measurement and a built-in worklight, rated CAT III 600V. Designed for HVAC work but used average-sensing rather than True RMS.
What replaced it?
The CL490 (400A True RMS, temperature, dual display) improves measurement accuracy with True RMS and adds DC current capability — the natural upgrade from the CL1100.
# Klein Tools® CL1100 400A AC Clamp with Temperature **Model:** `CL1100` **Brand:** Klein Tools **Category:** Clamp Meter > The Klein Tools CL1100 is a 400A AC/DC clamp meter with temperature measurement via thermocouple, rated CAT III 600V. It measures AC/DC voltage, AC/DC current, resistance, capacitance, frequency, duty cycle, and temperature. The meter includes a backlit display, work light, magnetic mount, lead storage, non-contact voltage tester, and analog bar graph, making it suitable for electricians and HVAC technicians handling diverse measurement tasks. The CL1100 is no longer in production. Backed by Klein Tools' 1-year limited warranty. ## Specifications | Attribute | Value | |---|---| | Product Type | Digital Clamp Meter | | Form Factor | hook | | Ac Amp Capacity | 400 | | True Rms | No | | Auto Ranging | No | | Temperature Measurement | Yes | | Low Impedance Loz | No | | Worklight | Yes | | Flexible Clamp | No | | Dual Display | No | | Jaw Opening In | 1.25 | | Voltage Range Ac | 600V AC | | Cat Rating | CAT III 600V | | Barcode (UPC) | 092644692109 | | Warranty | 1-year limited | ## What's Included - Test leads - Thermocouple - Batteries Source: https://www.jaspecs.com/klein-tools/clamp-meter/cl1100-klein-tools-400a-ac-clamp-temperature/