> **Source:** Core Electronics is an Australian maker-electronics retailer and manufacturer based in Newcastle, NSW, run by a team of makers and educators. We design and manufacture our own product lines (PiicoDev, CE originals) and are official retailers for iconic maker and industrial brands including Raspberry Pi, Arduino, Adafruit, SparkFun and DFRobot. Orders ship Australia-wide from our Newcastle warehouse. Prices are in AUD and include GST. Pricing, stock and dispatch on this page are generated from the store's live catalog. Full machine-readable index: https://core-electronics.com.au/llms.txt

# Servo Monitor

**Type:** Product page · **SKU:** GB-3109-0005-0001 · **Brand:** [goBilda](https://core-electronics.com.au/brands/gobilda)
**Page:** https://core-electronics.com.au/servo-monitor.html ([markdown](https://core-electronics.com.au/servo-monitor.html.md))

The Servo Monitor is a tool that allows you to easily check servo vitals. Just plug a servo controller into one side and a servo into the.....

## Pricing

- **Price:** $48.80 (inc GST) — $44.36 AUD, exc GST
- **Quantity discounts:** 10+ $42.15 (exc GST) · 25+ $39.93 (exc GST)

## Availability & dispatch

- Out of stock — the product page offers email notification when it returns.

## How to buy

- **Build a cart:** compose `https://core-electronics.com.au/cart/link?items=GB-3109-0005-0001:1` (comma-separated SKU:qty pairs) and share the link. Opening it shows a confirmation page with live pricing and stock before anything is added to the cart.
- **Verify the cart first:** fetch `https://core-electronics.com.au/cart/link/GB-3109-0005-0001:1.md` for live line prices (inc & exc GST, quantity discounts applied), stock and dispatch estimates, and totals. Append `/to/{AU-postcode}` (or `/to/{country-code}:{postcode}`) before `.md` for delivery options and prices to that destination. Unknown, retired, or out-of-stock SKUs are flagged. (Query form `cart/link.md?items=...` also works but some robots parsers refuse query strings here.)
- **Checkout** is completed on-site and includes a captcha at the payment step. Share the cart link; checkout takes it from there.
- **Search the catalogue:** `https://core-electronics.com.au/search/{query}.md` (URL-encode the query; pages 2-3 at `search/{query}/{page}.md`; `search.md?q=` also works)
- **Payment methods, purchase orders, policies and contact details:** https://core-electronics.com.au/llms.txt
## Description

The Servo Monitor is a tool that allows you to easily check servo vitals. Just plug a servo controller into one side and a servo into the other. The screen will display the value for the selected mode in real time! Press the pushbutton to cycle through the five modes.

**Modes:**

- **Voltage**
    This mode displays the voltage being sent to the servo. The wire is used to supply power to the motor within the servo. Sending the correct voltage to a servo is important, and this mode keeps you in-the-know about any excessive voltage, as well as the battery's charge level.
- **Current**
    In this mode, the Servo Monitor displays the current in amps. This can give you an indication of how hard the servo is working to maintain a position. You can never have too much potential current in your battery. For example, a battery with a million mAh rating will not burn out your servo; it will just run the servo for an extensive period of time between charges. However, a battery which cannot supply enough current will not allow your servo to live up to its strength and speed potential.
- **Power**
    This mode displays the amount of power (in Watts) that the servo's motor is using. While the power in watts can also be derived by multiplying the voltage by the current, this mode is a more convenient way to find that value.
- **Pulse Width**
    In this mode, the Servo Monitor displays the width of the pulse of the signal being sent to the servo. This value is displayed in microseconds (µsec) and is the core of how servos are controlled. The pulse width tells the servo where to rotate to (or for continuous rotation servos, what speed and direction to achieve). It’s super helpful to know the pulse width—you can, for example, use it to determine what PWM range your transmitter is sending, or confirm that the code you wrote for your Arduino is working correctly.
- **Pulse Frequency**
    In this mode, the Servo Monitor displays the frequency of the Pulse Width Modulation (PWM) Signal. This value is displayed in hertz (how many pulses per second). This is a generally less-critical value than the pulse width, but it can be useful during troubleshooting.

### Downloads

- [ STEP File ](https://core-electronics.com.au/attachments/localcontent/3109-0005-0001_100848ffa51.zip)

### Specs

| Weight | 21g (0.7oz) |
|---|---|
| Input Voltage Range | 3.3-15 VDC |
| Current Consumption | 20mA |
| Pass through Current Max | 10A |
| PWM Range | 0 - 3200 µsec |
| Frequency Range | 1-1000Hz |
| Current Sensing Accuracy | ±5% |
| Voltage Sensing Accuracy | ±5% |
| Pulse Width Sensing Accuracy | ±0.1% |
| Frequency Sensing Accuracy | ±0.1% |
| Version | 3.0 |

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/G/B/GB-3109-0005-0001-1.jpg)