100/150A 0-60V High Precision In-Line Watt Meter Power Analyser
Price range: £14.60 through £16.99 Inc. VAT
Measure and monitor the performance of your motor/ESC/battery with this in-line Power Analyser.
A wattmeter is an essential tool for any drone builder. It will enable you to measure and monitor the performance of your motor/ESC/battery, and the electrical throughput/consumption of your power train. With this information, you’ll be able to select the most efficient prop/motor/ESC combination and more importantly, hopefully avoid damaging your components before you go out to fly! If the wattmeter saves you just one motor or ESC, then it has paid for itself.
The meter is easily connected; it simply sits in-line between your battery and device. So if for example you were testing the running efficiency of a prop, you would have the meter wired in between your speed controller and battery. If you were monitoring the performance of your battery charger, you would connect the unit between the battery and the charger. The meter is self-powered from the measured power supply, so you don’t need to worry about an additional power supply. The meter is rated at up to 100/150amps and operational from 4.8-60V (0V with optional auxiliary battery input).
The meter is also easy to use, in fact it doesn’t have a single button so there is nothing to setup. Values for Current (A), Voltage (V) and Power (W) are shown in real time, while Peak Amps (Ap), Peak Watts (Wp), Voltage Minimum (Vm); and accumulated Amp-hours (Ah) and Watt-hours (Wh) are shown sequentially every two seconds on a continuous cycle – these ‘data values’ (Ah, Wh, Ap, Vm, Wp) are reset on power up.
We sell two versions of this watt meter: One with a max 100A rating and another with max 150A rating.
Typical applications:
- To measure the actual values of current (A), voltage (V) and power (W).
- Ensure peak currents are within tolerance for your power system.
- Check battery health and performance.
- Evaluate R/C battery charging efficiency.
- Assist with the correct selection of propellor and test efficiencies.
- Check for wiring and connector power losses.
- To verify the operating voltage of your flight pack under load and measure the quantity of charge drawn from the flight.
- Operates from 4.8-60V (0V with optional auxiliary battery)
- 16 x 2, backlit LCD display.
- Size: 85 x 42 x 25mm
- Weight: 95g
Measures:
- 0-100/150A, resolution 0.01A;
- 0-60V, resolution 0.01V;
- 0-6554W, resolution 0.1W;
- 0-65Ah, resolution 0.001Ah;
- 0-6554Wh, resolution 0.1Wh.
Included:
- 1x High Precision Watt Meter
- Instructions
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SHIPPING & DELIVERY
We are based in the UK and ship to most destinations worldwide.
We dispatch orders during the times shown on our Dispatch Schedule. Orders placed before the daily dispatch cutoff will ship the same day (subject to stock availability). Orders placed after the cutoff will ship on the next scheduled dispatch day.
A confirmation email is sent once your order has been packed. If you need to amend your order, please contact us as soon as possible — once shipped, we’re unable to make changes.
We work with trusted delivery partners including Royal Mail, DHL, UPS, Fedex and Parcelforce. If you have a delivery requirement or would like to arrange collection, please get in touch.
Next Dispatch: Tomorrow
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Shipping to the UK
- Order before the daily dispatch cutoff for same day dispatch.
- FREE delivery available on qualifying orders over £99 (under 1kg).
For small, low-value orders, Royal Mail First Class is our most economical option. Royal Mail Tracked 24 is the most popular choice, offering full tracking and flexible delivery options. For guaranteed next working day delivery, we recommend Royal Mail Special Delivery.
Royal Mail delivers to residential addresses Monday to Saturday, while courier services (including DHL) typically deliver Monday to Friday.
International Postage
- USA orders: Import duties and taxes are prepaid by us — no additional customs charges on delivery.
- Other destinations: Customs duties or import taxes may apply and are the responsibility of the recipient.
Smaller, lower-value orders may be sent via Airmail or tracked postal services. Economy road and express air courier options are available depending on destination. For faster delivery, we recommend express air courier services such as DHL Express, which typically deliver within 1–2 working days across Europe and a few working days for most other destinations.
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