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Price: $142.86 - $119.99
(as of Oct 03, 2025 16:26:08 UTC – Details)
B0F2GR1D9D, Klein Tools CL490 Dual Display Clamp Meter is auto-ranging for precise measurements with a secondary display for easier viewing in tight spaces. The meter reads AC/DC current, voltage, resistance, continuity,frequency, and capacitance; all with True RMS accuracy. It features diode testing and temperature is taken, via thermocouple. There is NCV detection with audio-visual alerts for additional functional applications. To ensure visibility in any lighting, there is a backlit and hi-vis display. For more than 160 years, Klein Tools has manufactured premium-quality, professional-grade hand…, 4.5,
Reviewer: Mike
Rating: 5.0 out of 5 stars
Title: Simple to Use, Many functions, Excellent value
Review: This meter combines almost all of the functions of a good good conventional digital multimeter (DMM) with the convenience and simplicity of an AC / DC clamp current meter, giving the best of both worlds in one compact unit.The display is large and easy to read, though it is white numbers on black background instead of the usual black on white; it’s back illuminated. Some reviewers stated that the display shuts off too rapidly (power saving feature); it does have a 5-minute time out function, however, this can be easily overridden and turned off so that the meter stays on continuously (this is explained in the instruction manual, as are many other excellent features that are not immediately apparent).All features are easy to access, and the buttons and switches on this meter, including the thumb operated rotary range dial, work smoothly and reliably.It comes with a thermocouple temperature probe, test leads, batteries, a case, and an instruction manual; In other words, it is a complete kit ready to go right out of the package.I checked the meter on a voltage reference and the calibration was very good.The only additional feature that I wish this meter had was an in-circuit 10 amp current measuring range. That said, the clamp sensing current measurement is more accurate at low current than I thought it would be.
Reviewer: Noel 199
Rating: 5.0 out of 5 stars
Title: Excellent clamp ammeter for the price
Review: The clamp ammeter performs ell beyond my expectation.It offers more functionality for less money and is easy to use.It is durable and suitable for DIY and professional use.The specs appear to be at par with clamp ammeters.I think this is one of the best clamp ammeter for your money you can get out there.
Reviewer: Eduardo Cabrera
Rating: 5.0 out of 5 stars
Title: HVAC techs
Review: Overall this is a good meter. I am a new residential HVAC service tech and it can handle most our applications. Can be used to measure amperage draw, voltage, temperature splits, micro amp readings, capacitance, continuity and resistance. The only limitation is its inability to measure very small Amperage draws like for Carrier condensing gas furnace inducer motors which have an FLA rating of 0.293. Per the manual:Minimum Current Measurable: 0.3A AC or DCI chose this multimeter over Klein’s other meters because of the DC measuring ability of the clamp. Just be sure to take the measurement without the magnet attached. Another reason is that it came with a thermocouple for measure temperature. I lost my first Klein thermometer so I purchased two Cooper-Atkins digital thermometers. One was defective and the other’s I pulled the probe off after two months of daily usage through screw holes. As a result, I have used this meter to measure temperature more often than with either of my first 3 thermometers. I will keep this meter as it is rugged and dependable for most applications but I will need to purchase another for measuring under 0.3 Amps. It is hard to read the LCD when it is bright outside, but the brightness can be increased by holding the side button.
Reviewer: Gadget Tom
Rating: 5.0 out of 5 stars
Title: Reliable and Versatile Clamp Meter
Review: I recently started using the Klein Tools CL390 Clamp Meter, and it’s been a solid addition to my toolkit. The auto-ranging TRMS feature provides accurate readings for both AC and DC currents up to 400 amps. The high-visibility reverse contrast LCD display is easy to read in various lighting conditions. I appreciate the built-in non-contact voltage tester and the ability to measure temperature with the included thermocouple. The meter feels durable and comes with a convenient carrying case. Overall, a dependable and versatile tool for both professionals and DIY enthusiasts.
Reviewer: Macs R We
Rating: 4.0 out of 5 stars
Title: A quality meter, but has foibles
Review: I bought this meter because none of mine did DC clamp current. For that much, it was worth the money. The other features I have used seem accurate enough for me to make this my primary meter. I like the auto-ranging features and the “slip off” probe tips that let you choose long or short probes. The display is hard to read outdoors. The ohmmeter doesn’t auto-range — it starts up in an overall useless range and doesn’t go to vanilla mode unless you hit the SET key (NOT the RANGE key, odd) — if you don’t know this, you’ll take bad readings The meter has an idle shutoff timer, but it doesn’t understand “idle” properly — it often gives you shutoff warnings while you are actively using it. None of these are problem enough for me to disqualify the unit for my purposes.
Reviewer: DIYer
Rating: 5.0 out of 5 stars
Title: good quality with DC current sensor
Review: works as expected. good quality
Reviewer: Mark P.
Rating: 5.0 out of 5 stars
Title: Great HVAC tool
Review: Perfect for HVAC work, Durable with an easy to read LED screen.
Reviewer: Doug Hansberry
Rating: 5.0 out of 5 stars
Title: Good VOM. Does almost everything.
Review: Never used Klein tools before. But this was a third of the price of a Fluke and my last VOM died after 40 years (Radio Shack). This one does everything I need: AC and DC voltage, AC amps, resistance, and even has a temperature probe. The only annoyance is it beeps at me if I haven’t used it in awhile, but it then has auto-shutoff so it doesn’t drain the batteries. It even captures peak amperage on a motor startup. Display is easy to read and the functions and on/off are on a thumbwheel which is very easy to operate with the hand holding the instrument. Seems to be a quality instrument for a reasonable price.
Reviewer: Cliente de Amazon
Rating: 5.0 out of 5 stars
Title:
Review: Me gusto mucho, lo camparé con el multimetro de gancho Fieldpiece de un amigo y con uno Truper y no presenta diferencias significativas.Mide todos los parámetros que necesito, Voltaje AC y CD, Corriente AC y DC, capacitores, resistencia, diodos, continuidad, frecuencia, temperatura , etc. Si necesitas más información puedes acceder directamente a la página de Klein Tools y ahí se encuentras todo. Personalmente te lo recomiendo, si te quieres iniciar en la electricidad/electrónica y buscas un buen multimetro y olvidarte de comprar otro en un futuro, este es el indicado. Trae su estuche, puntas de prueba, una sonda termopar y 3 pilas AAA, este último detalle me gustó ya que puedo usar las pilas recargables que tengo en casa. Lo único que no me gusto mucho fue la iluminación, pero te acostumbras en unos días, no se ve muy bien en el sol directo pero haciendo sombra y activando la retroiluminación (que tampoco se nota) se soluciona un poco, adjunto una foto en sol directo para que te hagas la idea. Si tu uso será en interiores no hay problema. Envío en y entrega sin inconvenientes. Pagué 2183 MX por este modelo CL390. Todo bien por parte de Amazon. Gracias
Reviewer: Georgy Davis
Rating: 5.0 out of 5 stars
Title:
Review: Good value, haven’t used it yet but it’s got everything I need for my A/C work
Reviewer: Erik
Rating: 5.0 out of 5 stars
Title:
Review: muy bue producto la pantalla auxilair ayuda mucho
Reviewer: matthew b.
Rating: 5.0 out of 5 stars
Title:
Review: Really nice built bit of kit, it seems pretty accurate even at low currents, good value for a versatile piece of kit
Reviewer: T
Rating: 5.0 out of 5 stars
Title:
Review: Good meter . Good price
, Tools & Home Improvement > Electrical > Testers > Multi Testers, #Klein #Tools #CL490 #ACDC #Digital #Clamp #Meter #TRMS #Dual #Display #AutoRangin..,
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