Express Post
One button per mode
Home, Away, Disarm and SOS each have their own dedicated button, so there is nothing to scroll through and less chance of pressing the wrong mode by accident.
eufy Key Fob E10 | New (Box Damaged)
$34.00
Skip to product information
$34.00
Build around this sensor
See what works with it and what it needs, with one kit total.
Know before you buy
The quick decision check
- Condition
- New Box Damaged
- Stock
- Currently unavailable
- Delivery · Australia Post
-
Express Post
FREE on $99+ orders
$12.95 below $99
Standard
$9.95 below $99
Order total after discounts.
Delivery estimates & policy
- System
- Alarm accessory - HomeBase required
- Power
- Battery
- Compatible hubs
- HomeBase Mini, HomeBase 2, HomeBase 3, HomeBase Professional S1
- What you need
- One compatible eufy HomeBase required; sold separately
Included items: Read this listing's contents before choosing accessories. A condition grade alone does not tell you which parts or packaging are included.
Compatibility: Requires a compatible eufy HomeBase, sold separately: Mini v4.0.5.2+, HomeBase 2 released after 2021 with v3.4.1.2+, HomeBase 3 v3.7.2.6+, or HomeBase Pro v4.1.4.3+. Controls the paired HomeBase system; not a universal remote for standalone Wi-Fi cameras. AU and US HomeBases can pair; model and firmware requirements apply.
What you need to install it
- Install type
- DIY
- You’ll need
- Configured compatible eufy HomeBase and eufy app for pairing; check the model and minimum firmware.
Choose compatible extras Choose only what your setup needs
Use the regular Add to cart button for this product on its own. Check the setup requirements above and each extra's listing for included parts and firmware requirements.
This adds the product shown above and every selected extra in one step. Use the regular Add to cart button for the product on its own.
Choose your viewThe essentials or the full story. Switch any time.
CamGuard Australia
Townsville, QLDExpress included over $99.00
Key Fob E10 New, box damaged
Four buttons. One less reason to reach for your phone.
A small four-button remote that sends Home, Away, Disarm and SOS commands to a compatible eufy HomeBase alarm system. It runs on a replaceable coin-cell battery and does nothing useful until it is paired to a working HomeBase.
- Four dedicated buttons
- Home, Away, Disarm and SOS
- Sub-1G radio to the HomeBase
- Up to 200 m open area
- HomeBase required
Needed to use it. A compatible eufy HomeBase is required and sold separately. eufy's own Key Fob E10 product page names HomeBase Mini (firmware v4.0.5.2 or later), HomeBase 2 (v3.4.1.2 or later, released after 2021), HomeBase 3 (v3.7.2.6 or later) and HomeBase Professional (v4.1.4.3 or later).
4dedicated mode buttons
200 mopen-area radio range, eufy's figure
CR2032replaceable coin-cell battery
IP65dust and water rating, eufy's figure
Sub-1Gradio link to the HomeBase
4HomeBase families eufy names, with firmware floors
The 200 m radio figure is for open areas. The fob must remain within range of its paired HomeBase; walls and other obstacles can reduce that range.
What it does well.
Key Fob E10: the features that matter in everyday use.
Sub-1G radio, not Wi-Fi
The fob talks to the paired HomeBase directly over a Sub-1G radio link rather than your Wi-Fi network, with a published range of up to 200 m in open area.
Replaceable coin cell
A CR2032 battery, the same type used in many watches and remotes, powers the fob. There is no charging cable and no charging port to worry about.
Keychain or lanyard
eufy describes it as easy to attach to a keychain or wear on a lanyard, so it travels with the keys you already carry.
The honest details
Before you buy.
- It only sends commands. The fob does not add a camera, motion sensor or door contact of its own. What it can actually do depends entirely on the devices already paired to your HomeBase.
- The SOS button is a local alarm trigger, not a monitoring service. eufy describes SOS as sending a command to the paired HomeBase. It does not call emergency services and does not guarantee anyone responds.
- At home means within hub range. The IP65 rating does not extend the radio link. Use the fob within range of its paired HomeBase and within its 0–50 °C operating range.
- It alerts. It does not prevent. A key fob controls a configured alarm system. It is one part of home security, not the whole of it.
Specifications.
Published specifications for Key Fob E10 (T90K0), grouped for easy comparison. Only sourced details are included.
Controls and modes
- Modes
- Includes 4 modes: Home, Away, Disarm, and SOS, for arming and disarming
- Carrying
- Attaches to a keychain or can be worn with a lanyard
- Button hold duration
- Hold a button for 2 seconds to send its command, per eufy's user guide
Power and radio
- Battery
- CR2032 coin-cell battery
- Radio range
- Up to 656 ft / 200 m in open area
- Weather rating
- IP65-rated dust and waterproof design, per eufy's own product page
- Location of use
- eufy's own FAQ states it can only be used at home, connected to the HomeBase
- Dimensions and weight
- 62.1 x 34 x 11 mm per eufy's user guide; weight not published
- Operating temperature
- 0–50 °C
Installation and general
- Model
- T90K0121
Make sure it fits your setup.
The short version: this is a control accessory. It sends mode commands to a compatible eufy HomeBase and has no useful function without one.
Works with
- HomeBase Mini, from firmware v4.0.5.2. Named on eufy's own Key Fob E10 product page.
- HomeBase 2 (also called S280), from firmware v3.4.1.2, released after 2021. Named on the same eufy product page.
- HomeBase 3 (also called S380), from firmware v3.7.2.6. Named on the same eufy product page.
- HomeBase Professional (Pro), from firmware v4.1.4.3. Named on the same eufy product page.
Does not work with
- Standalone operation. eufy's own FAQ says the fob needs to stay connected to a HomeBase and has no useful function on its own.
- Direct phone pairing. The fob talks to the HomeBase over its own Sub-1G radio link, not to a phone or the eufy Security app directly.
- Emergency-service dispatch. eufy's page describes the SOS button as sending a command to the paired HomeBase. It does not describe any link to police, ambulance, fire services or a monitoring centre.
Check before buying
- Check the operating location. eufy rates the fob IP65 and specifies 0–50 °C. Its at-home limitation means it needs a working radio link to the paired HomeBase.
New, explained.
What the condition label on this listing actually means.
What Box Damaged means
A new, unused unit whose outer retail carton is dented, torn or scuffed. The damage is to the cardboard, not the product.
Who did the work
Nobody has touched the unit. We describe the carton and the published spec sheet only, and we do not open units to check them.
How it arrives
In that marked carton, with the standard retail accessories, and our own 12-month warranty.
Right for you if
- You already have, or are buying, a compatible eufy HomeBase and want a simple physical remote for Home, Away, Disarm and SOS.
- You want mode switching without reaching for the app every time.
- Your HomeBase is a Mini, HomeBase 2, HomeBase 3 or Professional S1 on current firmware.
Probably not for you if
- You do not have a compatible eufy HomeBase and are not buying one.
- You want a device that adds camera or motion detection on its own.
- You expect the SOS button to reach emergency services directly.
Plan your setup.
What you need
Before you bring it home
This is a local remote for a compatible eufy HomeBase, not a phone-independent internet controller. Check the hub model and minimum firmware, fit the specified CR2032 battery and pair it in the app. Hold a mode button for two seconds to send its command while within radio range.
- Set up the HomeBase first. Confirm your compatible HomeBase is working in the eufy Security app and update it to the latest available firmware before adding the fob.
- Open the eufy Security app. Select the HomeBase, tap the add-device control and choose Key Fob from the device family list.
- Pair it nearby. Keep the fob close to the HomeBase and follow the pairing prompts shown in the app.
- Test every mode. From the places you actually enter and leave, press each button and confirm the HomeBase responds the way you expect before relying on it.
Included with your order
Supplied items
- 1 × eufy Key Fob E10, new, unused
- Installed CR2032 battery
- Quick Start Guide
- Original retail carton with cosmetic damage
Not included
- HomeBase: not included; a compatible HomeBase is required and sold separately
- Lanyard: eufy describes wearing it on one, but does not list one as included
- Camera, motion sensor or entry sensor: none included, these are separate system components
Questions people ask.
Does this fob work without a HomeBase?
No. eufy's own FAQ says the fob needs to stay connected to a HomeBase, and the product page lists only paired HomeBase models. It has no useful standalone function.
Does the SOS button call for help?
No. eufy describes SOS as sending a command to the paired HomeBase. It is a local alarm trigger, not a monitored emergency service.
Can I use it away from home?
It needs to stay within radio range of its paired HomeBase. The IP65 rating describes dust and water resistance; it does not give the fob a mobile internet connection.
When will it ship, and what does delivery cost?
We do our best to get orders out the same day. Same-day to 1 business day is our typical dispatch time from Townsville. During busy periods it can extend, though that is rare. Australia Post Express is included on every order over $99.00. Under $99.00 it is $9.95 tracked or $12.95 Express.
Who covers the warranty?
We do. CamGuard Australia is an independent importer and reseller, and this product carries our own 12-month warranty. It is not a manufacturer warranty. Your rights under Australian Consumer Law apply on top. Faulty or not as described inside that year and we cover the return postage.
Can I return it if I change my mind?
Yes, within 30 days of delivery if it is complete and unused. You pay the return postage and the original shipping is not refunded. Faulty or not-as-described returns are always free.
Independent importerWe buy genuine eufy stock and sell it under our own name. Not an official eufy dealer.
Our own 12-month warrantyHonoured by us in Townsville, not by the manufacturer. Faulty inside a year and we pay the return postage.
Express as standardAustralia Post Express included on every order over $99.00, from Townsville, Queensland.
Condition stated up frontThe grade on this listing is spelled out above so nothing about the unit is a surprise.
Key Fob E10, new, box damaged.
A simple four-button control point for a compatible HomeBase system. Exactly as described above, our 12-month warranty. If that is the trade you want, this is the listing.
The front-verandah collection · eufy Key Fob E10
The Yeah-Nah GoodbyeRight.
Right.
We’re off.
Eventually.
Four physical alarm controls for a compatible HomeBase, carried on your keys.
The eufy Key Fob E10 puts Home, Away, Disarm and SOS on a small remote. Hold the right button for two seconds. The paired HomeBase receives the command.
New, never usedBox damaged1 × Key Fob E10
HomeBase required, sold separately. Check the supported HomeBase model and minimum firmware before purchase.
THE LONG GOODBYE
Departure pending
Departure pending
YOU, TEN MINUTES AGO“Righto. We’d better make tracks.”
THE HOST, RIGHT ON CUE“Hang on. Take some mangoes.”
STILL HERE.
Now carrying mangoes.
Now carrying mangoes.
The knee slap.
One goodbye at the door.
The second goodbye.
One more conversation at the gate.
Give the house an answer.
Hold Away for two seconds.
Before it leaves our placeNEW FOB.
BOX DAMAGE.
BOX DAMAGE.
New, never used. Damage affects the outer retail packaging.
CONDITION DISCLOSEDThe outer carton is damaged.
The box gets its own explanationThe goodbye is messy.
The goodbye is messy.
The condition isn’t.
This is a new, unused eufy Key Fob E10 supplied with damaged outer retail packaging. It is not being sold as factory-sealed, pristine gift-box stock.
The damaged outer box does not change the fob’s new, unused condition. If the packaging needs to look immaculate for a present, choose a different condition.
Four answers. No “we’ll see”.Tell the house
Tell the house
what you mean.
Use a two-second hold for each function. System behaviour depends on your HomeBase, connected devices and settings.
Current conversationHOMEShoes on. Mangoes acquired. Still inside.
Try the illustrated goodbye
A two-second timing illustration
AWAY
The house got the message.
You’re still being told which road has roadworks.
Illustration only. This page does not control a device.
Before anyone says “she’ll be right”Your HomeBase needs
Your HomeBase needs
to be in on this.
The model and firmware both matter.
The fob works with the supported HomeBase models listed below. Confirm the model and firmware before ordering. The fob is an accessory; no HomeBase is supplied.
- Compatible HomeBase
- eufy’s minimum firmware
- HomeBase Mini
- v4.0.5.2 or later
- HomeBase 2 / S280
- v3.4.1.2 or later; unit released after 2021
- HomeBase 3 / S380
- v3.7.2.6 or later
- HomeBase Pro
- v4.1.4.3 or later
Keep the hub on current firmware. If you have a HomeBase 2, the release-date requirement matters as well as the software version. Contact us with the model details if you are unsure.
“I’ve got a eufy somewhere” is the start of the conversation.
The small round responsibilityA coin cell.
A coin cell.
Not another charging lead.
The E10 uses a replaceable CR2032 battery. To replace it, the manual shows opening the battery cover with a coin, fitting a fresh CR2032 and securing the cover again.
A red flash every 60 seconds indicates low battery. Respond to the warning and check operation after replacement. We do not quote a battery-life duration the manufacturer hasn’t specified for this fob.
The spare-cable drawer has been spared one applicant.
Keep button batteries away from children. Secure the battery compartment and seek urgent medical help if a battery is swallowed or inserted.
CR2032REPLACEABLE
Battery illustration · not an extra included spare
Take this with youA short packing list.
A short packing list.
A much longer goodbye.
In this single-fob listing
- 1 × eufy Key Fob E10.
- Quick Start Guide, as listed in eufy’s package contents.
- Outer retail packaging with damage disclosed.
The LED, buttons, battery compartment and attachment point are parts of the fob, not separate bonus accessories.
One fob. The host would still try to pack you a lasagne.
Bring your existing system
A compatible HomeBase is required and sold separately. Your phone and eufy app are used for setup.
eufy lists the fob and guide as the package contents. A separate lanyard or spare battery is not promised. The illustrated furniture, keys and household props are not included.
The verandah stays with the house.
Before the farewell committee arrivesSet it up.
Set it up.
Then practise leaving.
- Get the right HomeBase ready.
Confirm the model and compatibility, finish the HomeBase setup and update its firmware. The base comes first. This is one part of the departure where “we’ll sort it later” is not especially helpful.
- Add the fob in the eufy app.
Sign in, add a device, then scan the device QR code or choose Alarm System → eufy Key Fob E10. Follow the app’s instructions. The fob belongs to the system you pair it with.
- Follow the pairing prompt.
The manual specifies holding SOS for two seconds during pairing until the LED blinks blue. Use this in the setup flow; in normal use, SOS triggers an alarm. Context matters more here than in a farewell conversation.
- Use Test mode and confirm the result.
Follow the manual’s Test mode procedure, check the event in the app and confirm your Home/Away settings. Verify operation from the place you intend to use it. Close the setup loop before opening the front gate.
“Oh, before you go...”These bits actually
These bits actually
need saying.
It controls a system. It is not the system.
A compatible eufy HomeBase is required. This is not a standalone alarm, camera, tracker or door lock. The flyscreen has more door hardware than the fob does.
Home mode is your configured mode.
The buttons select security modes; the settings and compatible devices determine the response. Do not assume every standalone Wi-Fi camera will follow the paired HomeBase. One fob is not a universal remote for the whole family tree.
SOS needs proper expectations.
It triggers the paired system alarm and an app event as described in the manual. This listing does not include professional monitoring, emergency-service dispatch or a medical response service.
It does not record or prevent incidents.
The E10 sends control commands. Connected equipment has its own recording and alarm capabilities, and no security outcome is guaranteed. The illustration’s confident “AWAY” sign is not a live status readout.
The particulars, before another anecdoteNothing tucked
Nothing tucked
behind the flyscreen.
- Brand / product
- eufy Key Fob E10
- Model family
- T90K0
- Type
- Portable security-system remote
- Quantity
- One fob
- Condition
- New, unused; outer box damaged
- Functions
- Home, Away, Disarm, SOS
- Operation
- Hold function button for 2 seconds
- Connectivity
- Sub-1G radio to HomeBase
- Required hub
- Compatible eufy HomeBase
- Battery type
- Replaceable CR2032
- Dimensions
- 62.1 × 34 × 11 mm
- Ingress rating
- IP65
- Quoted range
- Up to 200 m, open area
- Operating temperature
- 0–50 °C, per eufy’s exact-model support page.
- Setup
- eufy app and configured HomeBase
- Warranty
- Our own 12-month in-house warranty
Shipping and dispatchFrom Townsville
From Townsville
to your front door.
We do our best to get orders out the same day. Same-day to 1 business day is our typical dispatch time; during busy periods it can extend, though that is rare. Peak-period dispatch can take up to 3 business days.
Dispatch time is separate from Australia Post transit time. Tracking is supplied after dispatch. Free Express eligibility is calculated on the order total after discounts.
Shopify delivery options
Orders $99.00 and overExpress included
Under $99.00 · tracked$9.95
Under $99.00 · Express$12.95
Rates apply to this Shopify store. Delivery timing depends on destination and Australia Post.
Questions from just beside the gateSince we’re
Since we’re
still standing here...
My HomeBase says “3”. Is that enough?
HomeBase 3 is supported with firmware v3.7.2.6 or later. Update it before pairing, complete the hub setup and add the fob through the eufy app. HomeBase Mini, HomeBase 2 and HomeBase Pro have their own requirements shown above. The original HomeBase is not listed as a supported model for this fob.
Will I need my phone every time I leave?
You need the eufy app and a configured compatible HomeBase to set up the fob. After pairing, the physical function buttons let you select modes without opening the phone for every command. The fob still needs its local radio connection to HomeBase. It requires local radio range to the HomeBase.
Is it a tap, or do I hold the button?
Hold the chosen function button for two seconds, as specified in eufy’s user guide. Home, Away and Disarm select the corresponding system mode; SOS triggers the alarm in normal operation. Follow the app and manual for pairing and Test mode. Follow the exact setup instructions.
Does box damaged mean someone has used the fob?
No. This listing is for a new, unused fob with damaged outer retail packaging. Packaging condition is disclosed separately from product use. It is not presented as a pristine, factory-sealed gift box. The product reference photo shows the model, not the specific damage to the carton supplied with your order.
Does pressing SOS call an ambulance or the police?
Do not rely on it for that. The manual describes an alarm trigger and an event in the eufy app. This listing does not include a monitoring service or emergency-service dispatch. If you need emergency assistance, use the appropriate emergency contact method. Configure the system and understand its response before relying on any button.
Can the battery be replaced, and how long does it last?
The E10 uses a replaceable CR2032. The manual shows opening and closing the battery cover with a coin. We have not quoted a battery-life duration because the exact-model evidence does not establish one. Watch for the low-battery indication, replace the cell when needed and keep button batteries safely away from children.
When does my order leave Townsville?
We do our best to get orders out the same day. Same-day to 1 business day is our typical dispatch time; during busy periods it can extend, though that is rare. Peak periods can take up to 3 business days. Australia Post transit time starts after dispatch and varies with your destination.
Ready to leaveFour controls.
Four controls.
One compatible system.
One eufy Key Fob E10. New and unused, with outer-box damage disclosed. Four physical controls for a compatible eufy HomeBase, which is required and sold separately.
KEYS? YES. · RIGHT HOMEBASE? CONFIRM FIRST.
Shipping, warranty and returns.
Shipping
Australia Post Express included on every order over $99.00. Under $99.00: $9.95 tracked or $12.95 Express. We do our best to get orders out the same day; same-day to 1 business day is our typical dispatch time from Townsville, Queensland; during busy periods it can extend, though that is rare.
Warranty
CamGuard Australia is an independent importer and reseller. Our own 12-month warranty applies · not a manufacturer warranty. Faulty or not as described inside that year and we cover the return postage. Your rights under Australian Consumer Law are additional.
Returns
Change of mind: 30 days from delivery, complete and unused, buyer pays return postage, original shipping not refunded. Faulty or not as described: we cover return postage.
Condition on this listing
New (Box Damaged). New and unused; only the outer retail carton is marked or dented.
CamGuard Australia
© 2026 CamGuard Australia · ABN 62 385 894 763 · Townsville, QLD. Independent Australian reseller of eufy cameras, doorbells and locks; not an official or authorised supplier of eufy, Anker Innovations or their affiliates. Trademarks belong to their respective owners.
Condition: New (Box Damaged). New and unused; only the outer retail carton is marked or dented. We describe packaging and the published spec sheet only and do not open or test each unit individually. Compatibility: Key Fob E10 (T90K0) needs a compatible eufy HomeBase, sold separately; eufy's own product page names HomeBase Mini (v4.0.5.2+), HomeBase 2 (v3.4.1.2+), HomeBase 3 (v3.7.2.6+) and HomeBase Professional (v4.1.4.3+). Battery type is a replaceable CR2032 coin cell; eufy does not publish a battery-life duration for this fob, so this listing does not invent one.
The Fun view's "Yeah-Nah Goodbye" is a fictional comedy verandah-farewell scene built for this listing, not affiliated with, endorsed by or sponsored by eufy, Anker Innovations or any real household, and its carton, signs and dialogue are illustrations, not the supplied accessories or live device controls. Specifications sourced from the manufacturer and believed accurate at time of listing; features and compatibility may be updated without notice.
Product specifications
- Brand / product
- eufy Key Fob E10
- Model family
- T90K0
- Type
- Portable security-system remote
- Quantity
- One fob
- Condition
- New, unused; outer box damaged
- Functions
- Home, Away, Disarm, SOS
- Operation
- Hold function button for 2 seconds
- Connectivity
- Sub-1G radio to HomeBase
- Required hub
- Compatible eufy HomeBase
- Battery type
- Replaceable CR2032
- Dimensions
- 62.1 × 34 × 11 mm
- Ingress rating
- IP65
- Quoted range
- Up to 200 m, open area
- Operating temperature
- 0°C to 50°C
- Setup
- eufy app and configured HomeBase
- Warranty
- Our own 12-month in-house warranty
- Detection method
- Manual button press, four modes: Home, Away, Disarm and SOS
- Weather resistance
- IP65-rated dust and waterproof design; operates reliably in dusty and damp environments
- Mounting
- Portable, attaches to a keychain or is worn on a lanyard
- Power source
-
- Battery-powered
- Connectivity technology
-
- Wireless
Proof from real orders
Customer reviews
Product feedback and verified-buyer experiences collected by Judge.me.