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DROK Voltage Amp Meter DC, Battery Monitor DC 0-300V 200A, Ammeter Voltmeter for Solar System Setup Power Energy Capacity Volt Current Detector Panel with Hall Sensor

4.7 (10) Write Review
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$39.99

$ 20 .99 $20.99

In Stock

About this item

  • Multifunctional Meter: DROK multimeter panel is available to measure percentage and AH of remaining capacity, DC positive and negative bidirectional current, DC voltage, DC positive and negative power, DC positive and negative bidirectional accumulated electric energy. Voltage measurement range is DC 0-300V, current measurement range is 0-200A.
  • Hall Sensor & Easy Mount: the voltage amperage meter is coming with a Hall transformer to for isolated measurement, reliable and safe; accepting two-wire system connection and three-wire system connection, could be powered DC5~90V, easy and simple to wire this meter up.
  • Display: backlight can be controlled to be ON or OFF as user’s need; Equipped with full angle of view LCD screen, users could see the display clearly whenever at night and day, indoor or outside, even under the sunshine.
  • Alarming Function: it will alarm and flash to draw your attention when the real voltage is higher or lower than preset alarming voltage and real current is higher than preset current; It will also alarm and flash to remind you to charge for your device when the remaining capacity of battery is low.
  • Wide Applications: Can be used as dc amp meter, digital volt meter, power meter, battery capacity monitor. Suitable for all kinds of batteries, such as Lead-acid batteries, Lithium Polymer batteries, lithium iron phosphate batteries and etc. With function of storing date when power down, using this meter, no need to worry that your electric data will be lost.


Product Description

application

Measuring Range

Current measuring range: 200A

Voltage measure range: DC 0~300V

Capacity range: 0~999AH

Power range: 0~999KW

Electric energy range: 0~999KWH

Module description

Design Details

buttons

Buttons

With 2 buttons to be easily operated.

can measure charging and discharging current

Bi-direction Current

With the capability to measure current in forward and reverse direction.

Diameter of transformer: Φ20mm

Switch backlight

Backlight Control

Backlight can be manually turned on/off via the button.

Can be clearly viewed in any light conditions.


Peter Leonard
2025-08-24 21:26:18
I use it as a volt amp meter in my vehicle. It shows charge and discharge of my battery.It would be nice to have a smaller display but other than that its great and I like them.I have since bought others for other vehicles.
L. Blake
2025-07-27 14:05:03
Compact multi-meter, easy to install. Display is easy to read even with the backlight off. Hall effect sensor makes it easy to measure a circuit with a single +12VDC feed, but multiple grounds (wired and chassis). 20mm hole is plenty big enough for my 4 Ga cable.Readings are close enough to my Fluke that I can use it to keep track of what I need at a glance. Just installed it, so can't yet comment on stability over time. The attached photos are of the meter after calibrating the Hall sensor to zero; then with fans, gas sensor, dash cam and GPS connected (800ma) but no WH yet. (dash cam and GPS on stand-by, so minimum current - solar charging system has battery bank on 13.7V float)This unit came with a printed instruction sheet that is the same one available for download on the Amazon page. Wiring is straight forward for a 12V system, just +12VDC and ground. Button usage and parameter setting is a learning experience, but got it after a few tries.The instruction sheet could be better; phrasing and vocabulary required some translation, and the parameter setting seems incomplete. The instructions describe setting five (5) parameters (see attached photos):AHX XX.X - AmpHour capacity of battery bank, 430.0 in the photoFUX XX.X - Full Voltage for the batteries (U is seven-segment for V), 12.8 in the photoHUX XX.X - High Voltage (over-voltage) for alarm, 15.4 in the photoLUX XX.X - Low Voltage for alarm, 10.8 in the photoHAX XX.X - High Amp (over-current) for alarm, 125.0 in the photoAll good.....but.....there are three more parameters that are not mentioned in the instructions:CUX XX.X - not described, but the reading matches the cumulative energy (WH) as of this photoAAX XX.X - not described, but the reading matches the current as of this photoAUX XX.X - not described, but the reading matches the voltage as of this photoNot sure if these can be set, or if setting them changes anything. Didn't try. Maybe a way to calibrate without disconnecting things, maybe just lazy programmers? Something for the DROK product expert to explain. True fans would like to know.....So, overall, not perfect but worth the money for my installation (if it holds up).
Daniel
2025-06-04 15:21:49
Use both the AC and DC meters from this company. These work very well and are about as accurate as you can expect. Perfect, no. But dang close. The voltage is dead on comparing against my 2 flukes. Amperage does appear to fluctuate a bit when compared to my other meters. Unit tends to read a fraction of an Amp off but it is extremely close. My usage is to track AH on my power station and electric riding mower. Much better than just tracking the voltage drop. Little difficult to setup but once setup, work well. First you have to go through the setup config to define the AH of your batteries and the full charge voltage for it to accurately display FULL on the bar graph and AH reading. Once you have that setup, the first time you have to drain and recharge your batteries. This is a pain if you don't typically drain your batteries. If you have a 24AH 12volt battery, the AH meter will just read 0 until recharged to full. Kind of stupid. Otherwise, for the money, this can't be beat.
limca
2025-05-14 12:41:50
Very easy to install and use. Value for money.
Mark Vermont
2025-05-01 17:13:43
There were no instructions in the box other than the wiring diag on the sticker on the back so I came here to find instructions which helpful people posted.It is advertised to do what I need.Nevertheless it does not program as expected or indicated. Overall dissspointed.1) I cannot set any Ah value other than “200” and in attempts to change that sometimes it goes to zero. Currently have 3360Wh and soon to be 4560Wh so SOC (notwithstanding it won’t be ‘accurate’ with lithium batteries) with this will never be even close which also affects below:2) cumulative Wh aka kWh keep resetting itself to “0” which is annoying because that’s what I care about the most. Cell booster, USB chargers, lighting, furnace, range hood, water pump, and fan are 12VDC3) Voltage displays 0.2V higher than my SCC and VOM which is annoying. VOM was measured at the screws where power is derived so that should be closer since VOM matches other readouts.4) ordered a “2.5 meter wire” but the extension “wire” is only maybe 15 inches.I have several different Drok 120VAC meters that work fine, but this DC version is dissatisfying, and a 300A DC shunt model started crackling and the screen went blank while programming about two minutes after I connected it.Unfortunately I bought these a while ago (planning ahead) and return window is closed. Trying to figure out warranty.Maybe only a $25 item but I wasn’t planning just to donate money to amazon.
Peter Bethke
2025-04-30 15:56:08
I use this so I don't have to hit buttons on my solar inverter to see real time watts/amps into batteries, also my inverter does not show its own usage/draw. It show bi directional which is also nice for monitoring.
chris jalkotzy
2025-02-12 14:16:20
works
Maqhmood
2025-02-06 14:16:27
Works but really need to play with it understand how to use.
キャンパー
2025-01-22 13:18:48
レビュー記入後良かったので再購入し変化分を追記以下本文//リン酸リチウム鉄フェライト（以下リフェ表記）に、他社電圧監視モニタ使ってるが、リフェは電圧と残容量が比例せず、常に100％表示で不満。これは充放電の電力量で残容量を表示するらしく、使えそうと購入。取説は英語版同梱、日本語は連絡後送信とあり連絡、その日返信メールで着。設定しないと数値めちゃくちゃで取説は絶対必要。▲追記再購入品は日本語の取説同梱。だが、5項目の設定しかない古い取説。それ以外の設定も必要で最新をメールで貰う事。■センサ用リード線は約15cmで “短い”の評価多かった為か、50cmのモノが同梱。▲追記サービス期間中のみとの事。再購入品は普15cmのみ取説に則り５項目設定実施。（満充電容量等の基本的知識は必要・・）■バッテリーへの接続は、追加品必要で、私はリード線や圧着端子等新たに300円分購入した。接続後の電圧表示は13.2Vで、テスターは13.18Vと精度は良さそう。取説に最初は満充電セット必要とあり、130Ahリフェを100％充電したが、電流表示が－でセンサ逆設置では？と取説再確認、正しいようだ。■試行残容量の復元性をみる試行で、放電させ、その後充電で復元するかのテスト。■放電450ｗ電熱器使用、電力40６w(（放電31.3Ａ電圧13.0Ｖ）表示で乖離大。原因はインバータ側で電圧が85ｖなので低めででたかも？右上のバッテリー容量表示100％/130Ａhが、使用するにつれ、77％/100Ａhまでリニアに変化。1時間使用消費電力量は385(ｗｈ)を表示■充電満充電でストップする充電器を保有。14.0Ａで充電。この時の電流表示は-14.1Ａで精度は良い。▲追記再購入品は14.6A。新しい取説に校正方法記載あり。バッテリー容量77％/100Ａhが2h20で満充電完了し100％/130Ａhに戻った。使用電力量は-403ｗｈを表示満充電時に自動補正するとあるので、100％以上は上がらず、充電完了時リセットされるようだ。■所感精度は放電385wh/充電403whで５％（試行一回）。コスパは良いのでは・・普段使いでは累積誤差によるずれを懸念するが、定期的な満充電リセットが必要かも。放電/充電する（今回100％⇔77％）とリニアに変化し、残容量把握でき目的達成。
Customer
2025-01-11 17:23:01
Service was good: quick delivery unit works well.