EXTECH 380940 True RMS AC/DC Watt Clamp-on
High accuracy EXTECH 380940 Clamp-on for precise AC/DC measurements. Ideal for electricians.
- In-stock items are delivered within 2 business days.
- We are not Supporting COD Payments Terms Outside UAE
- For out-of-stock items, delivery may take 2 to 4 business weeks.
Order Via phone number
EXTECH 380940 True RMS AC/DC Watt Clamp-on
The Extech 380940 is a 400 Amp tiny True RMS AC/DC power clamp meter with a small diameter jaw designed to reach in tight spaces and calculate power up to 240kW. This mini power clamp, with the added convenience of instant watt readings, is useful for essential troubleshooting tasks in plant maintenance, electrical, HVAC, and telecom work, as well as residential electrical repairs, energy audits, fleet maintenance, marine, and motorcycle repair. Test leads, two AA batteries, and a carrying bag are included.
At MMElectronics, we strive to provide exceptional customer service. Our expert team is ready to assist you in selecting the right clamp meter for your application.
EXTECH 380940 True RMS AC/DC Watt Clamp-on specifications
- AC Current 400A 0.1A ±(1.5% + 3d)@50/60Hz Overload protection: 600A AC (AC frequency range 40Hz-1kHz)
- DC Current 400A 0.1A ±(1.5% + 3d) Overload protection: 600A DC
- AC Voltage 600V 1V ±(1.5% + 2d)@50/60Hz Overload protection: 800V AC
- DC Voltage 400V 0.1V ±(1.0% + 2d) Overload protection: 800V DC
- Frequency 10kHz 0.01-100Hz ±(0.8% + 2d) Overload protection: 600V AC
- Dimensions 7.2 x 2.5 x 1.4″ (183 x 64 x 36mm)
- Weight 6.7oz (190g including batteries)
Related Products
- Extech 380941
Technical data
| Specification | Details |
|---|---|
| AC Current | 400A 0.1A ±(1.5% + 3d) @ 50/60Hz Overload protection: 600A AC (AC frequency range 40Hz-1kHz) |
| DC Current | 400A 0.1A ±(1.5% + 3d) Overload protection: 600A DC |
| AC Voltage | 600V 1V ±(1.5% + 2d) @ 50/60Hz Overload protection: 800V AC |
| DC Voltage | 400V 0.1V ±(1.0% + 2d) Overload protection: 800V DC |
| Frequency | 10kHz 0.01-100Hz ±(0.8% + 2d) Overload protection: 600V AC |
| Dimensions | 7.2 x 2.5 x 1.4″ (183 x 64 x 36mm) |
| Weight | 6.7oz (190g including batteries) |
2 reviews for EXTECH 380940 True RMS AC/DC Watt Clamp-on
Clear filtersYou must be logged in to post a review.


Bench Multimeters
Mateo –
Cheap way to get a decent voltmeter and clamp on meter
hoor –
The EXTECH 380940 provides accurate and reliable measurements, making it an essential tool for any electrician.