Name: AnchorKnight
Brand: AnchorKnight
SKU: ANKW-001
Availability: PreOrder

Question 1

Does it work without a phone?

Accepted Answer

Yes. The AnchorKnight is a fully standalone GPS anchor alarm. It has its own multi-GNSS receiver, its own 85–90 dB siren, and a 72-hour battery. Drop anchor, set your radius, and it watches your position on its own. The companion app is optional — it adds live charts and remote push notifications, but the device protects you whether your phone is on board or not.

Question 2

How accurate is the GPS?

Accepted Answer

The AnchorKnight uses a dedicated multi-GNSS receiver (GPS, GLONASS, Galileo and BeiDou) with 1–2 meter accuracy and a one-second update rate. That is dramatically more stable than a phone, whose GPS typically drifts 5–15 meters — the single biggest cause of false anchor-drag alarms.

Question 3

How long does the battery last?

Accepted Answer

72+ hours of continuous anchor watch on a single charge. It recharges over USB-C from any standard charger or your boat's 12V USB outlet, so you never have to wire it into ship's power like a chartplotter.

Question 4

Is it waterproof?

Accepted Answer

Yes. The AnchorKnight is rated IP65/IP67 — sealed against rain, spray, and salt air, and protected against temporary immersion. It is built for the marine environment, not the living room.

Question 5

How loud is the alarm?

Accepted Answer

The built-in siren reaches 85–90 dB — loud enough to wake you from a deep sleep in the cabin, paired with a bright LED visual alarm. You can also receive a push notification on your phone over WiFi or Bluetooth at the same time.

Question 6

Can I use it outside the boat?

Accepted Answer

Absolutely. The device is compact and handheld (~130 × 85 × 18 mm). Set your anchor watch, then take it to your cabin, your bunk, or your nightstand. If you have the companion app, you can even step ashore for dinner and still get an alarm on your phone if your boat starts to drag.

Question 7

When will it ship?

Accepted Answer

We are taking reservations now. Early Bird and pre-order customers will be the first to receive units, and you will get an exact ship date by email well before we charge you — you pay on delivery, not today.

Question 8

Can I return it?

Accepted Answer

Yes. Every AnchorKnight comes with a 30-day return window and a 2-year warranty. If it does not help you sleep better at anchorage, send it back for a full refund.

Question 9

Does it work on inland waters and at sea?

Accepted Answer

Both. The multi-GNSS receiver works anywhere you can anchor — sheltered inland lakes and rivers, coastal anchorages, and offshore. You simply choose a watch radius (15m, 25m, 50m or 100m) that suits your swing room.

Question 10

What happens if I lose GPS signal?

Accepted Answer

The AnchorKnight continuously monitors signal quality. If satellite reception degrades or drops, it warns you immediately with a distinct alert rather than silently failing — so you always know whether you are protected. With four GNSS constellations, signal loss at anchor is rare.

Anchor alarm guides & resources

Anchor Watch Radius by Boat Length (with Examples)

What to Do If Your Anchor Drags at Night

Anchor Alarm for Catamarans: What's Different

How to Actually Sleep at Anchor

Dedicated Anchor Alarm vs Chartplotter Anchor Watch

How to Set an Anchor Alarm: A Step-by-Step Guide

How a GPS Anchor Drag Alarm Works

Why Anchor Alarm Apps Fail — and What to Use Instead

The Complete Guide to Anchor Alarms (2026)