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Description
90V 20A Color Dual-Display Voltage Current Meter Charge Discharge Measurement Counter, Without RelayFeatures 1. Bidirectional current detection, users who detect charging and discharging can easily detect bidirectional current without changing the wiring direction. 2. Power off memory function, after power off, it can memorize the AH number before power off, which is convenient for observation and measurement. 3. The time and AH number reset function will not affect the next measurement. 4. The number of AH can be topped up without affecting the
Features1. Bidirectional current detection, users who detect charging and discharging can easily detect bidirectional current without changing the wiring direction.
2. Power-off memory function, after power-off, it can memorize the AH number before power-off, which is convenient for observation and measurement. 3. The time and AH number reset function will not affect the next measurement.
4. The number of AH can be topped up without affecting the direct discharge measurement.
5. The voltage, current, charging capacity AH number, WH number, time and power are displayed at the same time, and the display information is comprehensive and clear.
6. With an output shutdown function key, the output can be turned on or off flexibly.
7. With overvoltage, overcurrent, overpower, time limit, overcharge and other protection functions. 8. It can be calibrated online, which is convenient for customers to correct errors in time.
9. When necessary, the liquid crystal display can be turned off to reduce the power consumption of the product.
Specifications
1. Voltage measurement range:
- Measurement range when self-powered: 10V~90V
- Measurement range when externally powered: 0~90V
- Input current/output current measurement range: 0~20A
2. Display mode Color LCD display
3. Display Resolution
- Voltage: 0.01V
- Current: 0.01A
- Capacity: 0.01AH
- Time: 0.01H
4. Accuracy
- Voltage: +/-1%+2 words
- Current: +/-2%+5 characters
5. Measurement rate: 5 times/second
6. Protection type and setting range:
- OVP (Over Voltage Protection): 0.01V~90V
- OPP (Over Power Protection): 0.01W~9.99KW
- LVP (under voltage protection): 0.01V~90V
- OCP (Over Current Protection): 0.1~100A
- OAH (Overcharged Power Protection): 0.01AH~999AH
- OFT (timeout protection) : 0.01 hours~99.9 hours
7. Dimensions (L x W x H): 79 x 43 x 52(mm)
8. Mounting hole opening (mm): 76.5 x 39.2 (mm)
Specification:
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Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.4 ★★★★★
Based on 16 reviews
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Product Reviews
★★★★★ 5
These wall plates look good and work well
Style: 2-Speaker
I used these wall plates for my home theater system. They are easy to install, look good, and accepted my banana plugs perfectly. They make my installation look tidy and I am pleased with the outcome. I have used other Cable Matters products in past and have always been happy with the results.
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Reviewed in the United States on January 12, 2026
★★★★★ 5
Excellent, clean look
Style: 1-Speaker
Great wall plate for that clean, in wall wiring look. Easy to install and connections are solid.
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Reviewed in the United States on November 26, 2025
★★★★★ 4
Great...but could be a bit better
Style: 2-Speaker
Almost perfect. Easy to screw apart and insert wires to both the back and to the front, or do what I did and screw the wire onto the back and then use a banana plug for the front. My only complaints are that the back piece sits off the wall a little, so the plate doesn't fit flat and tight against the wall. It leave a little gap around the edges. The other complaint is that the back piece has some flex in it, which makes me nervous when I push plugs into and out of it. I think it probably will hold up fine, but it feels a little oogy to push banana plugs into it and see it flex. Comes with all the hardware needed. Just need a philips screwdriver and wire cutters and you're good to go. Super easy to use, and way better than the spring loaded connections it replaced.
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Reviewed in the United States on July 12, 2017
★★★★★ 5
Built well
Style: 4-Speaker
Still working great no issues with sound quality.
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Reviewed in the United States on April 17, 2026
★★★★★ 5
Really good wall plates
Style: 1-Speaker
These plates came on time, packaged well and are "doing the trick". The plates, while fairly light-weight are perfect for my new system. They installed into the junction boxes very easily, hold the wires snugly and the banana plugs are perfect for my usage.
If you need a nice, easy to install, good quality, wall plate, I would highly recommend these.
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Reviewed in the United States on November 30, 2025