Parts catalogue · Enclosures · Melbourne

Sealed sensor enclosure (S / M / L), O-ring lid

A three-size family of project boxes for outdoor sensor nodes: soil moisture, tank level, flood and weather. The flat lid screws down onto an O-ring face seal, the four M3 insert lobes sit outside the seal line so no screw passes into the sealed space, and the ports take PG7 cable glands. Size M fits the RAK WisBlock Base RAK19007 and size L fits the LilyGO T-Beam. Size S, with a snap-in cradle for the Espressif ESP32-DevKitC V4, is available to order after fit check.

From A$36Made to order Some options after fit check

From A$36 for the size M, box + lid. Printed to order in Melbourne and shipped Australia-wide; we confirm the final price and lead time before anything is printed.

Get a quote → Email us about this part

On the quote page choose Request a quote (no file needed) and name this part and the option you want.

Three black 3D printed sealed enclosures in small, medium and large sizes with screw-down lids and round cable-gland ports — Studio render of sizes S, M and L with their lids on.

Order status. Size S is available to order after fit check: we are confirming the board-edge fit on a test print first.

What does it look like in use?

Renders are computer images of our own design, made from the same model we print. Photos of real prints will be added after the first production run.

Small black 3D printed sensor enclosure with the lid off, a green circuit board in the cradle and a cable through a gland — **In use (render)**Render: size S open, with a generic board and cable gland. The board and gland are stand-ins, not supplied.

Specifications: material, size and what it fits

Spec	Detail
Material	ASA for outdoor use (UV-resistant, black recommended) or PETG for indoor use
Size S	57.3 x 79.3 mm, 33.9 mm tall with lid. Snap-in cradle that fits the ESP32-DevKitC V4. 1 x PG7 port. Available to order after fit check
Size M	69.3 x 97.3 mm, 35.9 mm tall with lid. Standoffs that fit the RAK WisBlock Base RAK19007 (M2.5 self-tapping). 2 x PG7 ports
Size L	79.3 x 139.3 mm, 43.9 mm tall with lid. Standoffs that fit the LilyGO T-Beam (M2 self-tapping, 22 mm tall to clear its 18650 holder). 2 x PG7 ports
Seal	Face O-ring in a 3.2 x 1.25 mm groove: AS568 -037 (S), -042 (M), -047 (L), 70 Shore A NBR or silicone. Designed for an O-ring face seal; IP rating not tested
Hardware	Not included. Per box: 4 x M3 heat-set inserts (M3 x 5.7), 4 x M3 x 10 countersunk screws, one O-ring as above, PG7 nylon cable gland(s), M2.5 / M2 self-tapping screws for M / L
Mounting	Four more M3 insert points underneath for a bracket

Espressif, ESP32, RAK, WisBlock and LilyGO are trademarks of their owners. These enclosures are independent accessories, not affiliated with or endorsed by them.

How much does it cost?

Guide prices for printed parts, in Australian dollars. Shipping is extra; we confirm the final price, including any business minimum, before printing. Bulk and custom sizes are quoted per job.

Option	From
Size S, box + lid (after fit check)	A$29
Size M, box + lid	A$36
Size L, box + lid	A$48
3-size business sample pack, with a parts list for inserts and O-rings	A$180

Who it's for

Makers and start-ups building LoRa or ESP32 field sensors, and councils or ag-tech pilots that need a few dozen weatherproof-style nodes without paying for an injection mould.

Get a quote →Bulk or custom enquiry

Safety & use

Installation & use. Designed for the uses described on this page only. Fixings are not included: use the sizes listed, check they are tight before use, and check the parts regularly for wear or damage. Not for safety-critical or overhead load-bearing use. Damage caused by misuse, modification or overloading is not covered.

Electronics. This is a plastic enclosure with no electrical function. Boards, batteries, panels, cables and antennas are your own: fit and use them to their makers' instructions.

Sealing. The lid is designed for an O-ring face seal. It has not been tested to an IP rating, so do not rely on it where water getting in would be dangerous or costly.

This doesn't affect your rights under the Australian Consumer Law.

FAQ

Common questions

Is the enclosure waterproof?

It is designed for an O-ring face seal, with the lid screws outside the seal line and gland ports for the cables. It has not been tested to an IP rating, so we do not claim one.

Which boards does it fit?

Size M has standoffs that fit the RAK WisBlock Base RAK19007, and size L fits the LilyGO T-Beam. Size S has a snap-in cradle that fits the Espressif ESP32-DevKitC V4 and is available to order after fit check. Other boards: send us the board size and hole pattern.

What hardware do I need?

Hardware is not included. Each box takes 4 M3 heat-set inserts, 4 M3 x 10 countersunk screws, one O-ring (AS568 -037, -042 or -047 by size) and PG7 cable glands, plus M2.5 or M2 self-tapping screws for the board in M and L.

Which material should I choose?

ASA for anything outdoors, because it handles UV and weather; black is best in the sun. PETG is fine indoors.

Can you change the ports or size?

Yes. The design is parametric, so port positions, sizes and board mounts can be changed for your board. Send an enquiry with the board and the ports you need.