A pack, not loose batteries
A removable 10,000mAh rechargeable battery pack runs the lock. eufy’s AU page rates it for up to 14 months at around ten unlocks a day. Confirm the pack’s charging connection before buying a spare charger.
Condition Manufacturer Renewed (Excellent Condition)
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: Works over Wi-Fi with the eufy app - no HomeBase involved.
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Smart Lock E31 Renewed · Excellent
A Wi-Fi fingerprint deadbolt that unlocks by fingerprint, PIN, the eufy app or a physical key, powered by a removable rechargeable battery pack instead of AA batteries. It works from the eufy Security app over your home Wi-Fi.
Battery life is eufy's own estimate at roughly ten unlocks a day. Real life varies with use, temperature, signal strength and how often the keypad is woken.
Smart Lock E31: the features that matter in everyday use.
A removable 10,000mAh rechargeable battery pack runs the lock. eufy’s AU page rates it for up to 14 months at around ten unlocks a day. Confirm the pack’s charging connection before buying a spare charger.
A fingerprint, a keypad PIN, the eufy app over the lock's own Wi-Fi, or the physical key kept as a backup. Up to 50 fingerprints and 100 passcodes, on eufy's own figures.
Standard pre-bored deadbolt preparation: 35–55 mm door thickness, 60 or 70 mm backset, 38 or 54 mm cross bore, 25 mm edge bore. eufy's own template settles any doubtful measurement.
A compatible Matter-over-Thread hub is the usual route. eufy also documents local Apple Home control without a hub on supported iPhones with iOS 18 or later; remote Apple Home control still needs a hub. Check your exact controller and ecosystem. Apple HomeKey is not supported.
The honest details
Published specifications for Smart Lock E31 (T85F0), grouped for easy comparison. Only sourced details are included.
Fingerprint, PIN and the physical key provide local entry. The eufy app uses built-in Wi-Fi without HomeBase. Check controller requirements for optional Matter-over-Thread control.
A cosmetic grade only. Same spec sheet as a new unit.
This unit was used, then went through the manufacturer's renewal programme. Excellent is the top cosmetic grade: little to no visible marks on the housing.
The manufacturer's renewal programme did the refurbishment and testing. We describe the cosmetics and the packaging. We do not claim to have tested your individual unit ourselves.
In protective packaging; retail packaging may vary. Fully working, with the accessories listed further down, and covered by our own 12-month warranty.
What you need
Charge the 10,000 mAh battery and confirm the door’s bore, backset and thickness before installation. The lock provides direct app control without a HomeBase. Optional Matter has platform-specific controller requirements; remote Apple Home control needs a home hub even where a supported iPhone can control the lock locally.
Power and connection
If the main battery is flat, the USB-C port below the exterior lock can supply temporary power for entry. eufy states that this port does not recharge the battery or transfer data. Keep a physical key available as another way in while the battery needs attention.
Packaging may vary. Some renewed products arrive in plain protective packaging. Physical keys, spare batteries and other unlisted extras are not guaranteed; ask if essential.
No. The grade describes the housing, not the electronics. A renewed unit runs the same published spec sheet. The difference is cosmetic marks and the plain packaging it ships in.
No HomeBase is required for direct Wi-Fi app control. eufy lists T85F0 as unsupported on HomeBase Mini, HomeBase 3 and HomeBase 2. There is no monthly fee for the lock’s own features.
eufy describes a removable 10,000mAh rechargeable pack. We have not confirmed the pack’s charging connection from an exact T85F0 guide; check before buying a charger. The exterior USB-C port is for emergency power if the pack is flat.
A compatible Matter-over-Thread hub is the usual route. eufy also documents local Apple Home control without a hub on supported iPhones with iOS 18 or later; remote Apple Home control still needs a hub. Check your exact controller and ecosystem. Apple HomeKey is not supported.
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.
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.
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.
Fingerprint entry, rechargeable pack, direct Wi-Fi app control. Near-new cosmetics with little to no visible marks, full working order, and our 12-month warranty. If that is the trade you want, this is the listing.
Fast fingerprint entry, built-in Wi-Fi, a 10,000mAh rechargeable pack and Matter support when a compatible hub with a Thread border router joins the session.
The lock works locally; check the controller requirements for your smart-home ecosystem.
CamGuard Australia
Matter homework: Fingerprint, keypad and key provide local entry; built-in Wi-Fi connects the eufy app without HomeBase. A compatible Matter-over-Thread hub is the usual route. eufy also documents local Apple Home control without a hub on supported iPhones with iOS 18 or later; remote Apple Home control still needs a hub. Check your exact controller and ecosystem. Apple HomeKey is not supported.
Condition: Used before, then refurbished and tested under eufy’s renewal programme. Grade Excellent is the top renewed grade: near-new cosmetically, at most a light handling mark. It ships in renewed, non-retail packaging rather than a sealed retail box.
The counselling-room gag exists because “supports Matter” can hide a practical family argument. Fingerprint, keypad, physical key and the eufy app work through the lock’s own route. Third-party Matter control needs a compatible controller and Thread route; check the Apple Home local-control exception below, and Apple Home control is not the same thing as Apple HomeKey.
CamGuard model check
Same access basics. Different power plan. Both models offer fingerprint, passcode, eufy app and physical-key entry; the practical buying difference is how you power them.
Choose E30 if: you prefer common batteries that can be replaced immediately.
Choose E31 if: you prefer rechargeable power and the longer published runtime.
Battery figures are eufy's published estimates based on roughly ten unlocks per day; actual life varies with use, settings, signal strength and conditions. This comparison describes the model power systems. Supplied batteries and accessories depend on the condition and inclusions stated elsewhere in this listing. Measure your door before ordering.
The lock works on fingerprint, keypad, key and app without any of them. Third-party ecosystems need the controller setup nobody checked on the calendar.
The ordinary entry methods do not wait for a third-party ecosystem. That distinction keeps the lock useful even if the household’s smart-home allegiances change later.
Matter lets one lock fit different ecosystems, but the controller needs a Thread border router. Marketing agreement is not electrical infrastructure.
Matter is the common language; check your controller and Thread route. A compatible Matter-over-Thread hub is the usual route. eufy also documents local Apple Home control without a hub on supported iPhones with iOS 18 or later; remote Apple Home control still needs a hub. Check your exact controller and ecosystem.
Up to 50 registered fingerprints and 100 passcodes cover family, housemates and the tradie who says 8am but means “before lunch”. Timed auto-lock re-bolts after the configured delay; it does not detect whether the door has physically closed.
Fast fingerprint recognition and generous credential capacity suit a real household. Codes can be managed without issuing a permanent physical key to every visitor.

Door thickness, backset and cross-bore must sit inside eufy’s published fit. Mortice locks and lever sets are not being difficult; they are a different type of door hardware.
Door measurements are the non-negotiable boundary. A different lock type is not emotionally unavailable; it is mechanically incompatible.
eufy bases the battery estimate on roughly ten unlocks a day. A low-battery alert arrives before the crisis. Emergency USB-C power and the physical key remain available.
The long battery estimate is based on eufy's assumptions including typical daily unlocks. Alerts, emergency USB-C and the physical key are the practical fallback plan.
Matter can bring the E31 into Apple Home with the right hub. Apple HomeKey tap-to-unlock is not supported. Similar nouns have caused enough family meetings already.
Apple Home control through Matter does not create Apple HomeKey tap-to-unlock. The listing repeats that boundary because the two features are easy to conflate.
It has been used before, refurbished and tested under eufy's renewal programme, then graded Excellent for near-new cosmetics. It ships in renewed, non-retail packaging rather than a sealed retail box, and is covered by CamGuard Australia’s own warranty.
Excellent is the top renewed grade, not Brand New. The unit has been used before, refurbished and tested under eufy's renewal programme, with near-new cosmetic expectations. It arrives in renewed, non-retail packaging, not a sealed retail box.
We do our best to dispatch the same day; same-day to 1 business day is typical from Townsville. During busy periods it can extend a little, though that is rare.
CamGuard Australia provides the stated store warranty from Townsville. This is not a manufacturer warranty, and no recurring counselling session is implied.
Manufacturer Renewed Excellent E31: fast fingerprint entry, built-in Wi-Fi, long rechargeable battery life and Matter when the correct hub finally attends.
Household agreement reached: measure the door, use the local entry methods and invite a compatible hub only if the third-party ecosystem needs a seat.

Used before, then refurbished and tested under eufy’s renewal programme. Grade Excellent is the top renewed grade: near-new cosmetically, at most a light handling mark. It ships in renewed, non-retail packaging rather than a sealed retail box.
Your 12-month warranty is provided by CamGuard Australia, not the manufacturer, and does not replace any Australian Consumer Law rights.
Packaging may vary. Some renewed products arrive in plain protective packaging.
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.
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.
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.
Manufacturer Renewed, Excellent cosmetic grade. Previously used, renewed by the manufacturer, supplied in protective packaging, which may vary with little to no visible marks.
© 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: Manufacturer Renewed, Excellent cosmetic grade. Previously used, renewed by the manufacturer, supplied in protective packaging, which may vary with little to no visible marks. All refurbishment and testing on renewed stock is attributed to the manufacturer's renewal programme; we describe cosmetics and packaging only and do not test each unit individually. Compatibility: Smart Lock E31 (T85F0): fingerprint, PIN, key and direct Wi-Fi app control; optional Matter over Thread with controller requirements to check; HomeBase Mini, HomeBase 3 and HomeBase 2 unsupported; Apple HomeKey not supported. Runs on a removable 10,000mAh rechargeable battery pack, rated up to 14 months by eufy at roughly ten unlocks a day; varies with use, temperature and signal strength.
Smart-Home Household Counselling is a fictional comedy framing for this listing; no real therapist, counselling practice, or Apple, Google or Amazon product or service is implied or endorsed. Specifications sourced from the manufacturer and believed accurate at time of listing; features and compatibility may be updated without notice.
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