A BASICR2 relay that switches the watering pump sits dry inside the IP66 case mounted by the pump, shielded from rain and hose splashes.
What it is, who it's for, what it does
About this product
Need a Sonoff relay where rain and splashes reach — at the garden pump, the gate motor or the bathroom water line? The IP66 case is built for exactly those spots: the ABS V0 body and the transparent PC V0 cover seal the module against rain, dust and water jets, while the clear lid lets you read the status LED without opening the box.<br><br>The 132.2×68.7×50.1 mm interior fits a SONOFF BASICR2 or RFR2 board, or the PCBA of POW, TH10, TH16 and G1. Cables enter through sealed glands, and the lid is tightened with screws from the inside out for a proper seal. It is a passive accessory: it adds no smart features, it only protects the module you already own.
- DeliveryDelivery 50 MDL
- Returns14 days to return
- Warranty24 months
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Where it works
Use cases
The RFR2 module that opens the yard gate is closed in the IP66 box on a post, protected from rain and from car-kicked dust.
A TH module by the pipe in a bathroom or laundry stays dry inside the case, away from splashes and condensation.
For the installerTechnical specificationsfull spec · wiring · datasheet
For the installer
Technical specifications
full spec · wiring · datasheet
Environment
- Protection class
- IP66 (dust-tight, water jet protection)
Physical
- Enclosure material
- ABS V0 (non-flammable)
- Transparent cover material
- PC V0 (polycarbonate)
- Length
- 132.2 mm
- Width
- 68.7 mm
- Height
- 50.1 mm
- Weight
- 145 g
- Cable entry
- Sealed cable glands
Other
- Compatibility
- SONOFF BASICR2, RFR2; PCBA POW, TH10, TH16, G1
Support
Frequently asked questions
Which Sonoff modules fit this case?
Per the official list, the whole SONOFF BASICR2 and RFR2 boards fit, plus the PCBA of POW, TH10, TH16 and G1. Newer, larger models (TH Origin/Elite, POW Origin/Elite, NSPanel) do NOT fit — those use the Waterproof Box R2 instead.Can I put the case underwater?
No. IP66 means full dust protection and resistance to strong water jets, but not submersion. It is meant for rain, splashes and wet spots, not for staying underwater permanently.Does the case add smart features to the relay?
No, it is a passive accessory. It has no electronics, does not connect to Wi-Fi or Zigbee and does not show up in any app — it only protects the Sonoff module you mount inside.What is the case made of?
The body is flame-retardant ABS V0 and the transparent cover is PC V0 polycarbonate. Interior size 132.2×68.7×50.1 mm, weight 145 g.How do I get a proper seal?
Tighten the lid screws from the inside out and use glands matched to the cable diameter. A cable that is too thin and loose in the gland will let water in.Can I wire a 220V relay inside the case outdoors?
Yes, but 220V work should be done by an electrician: respect cable cross-section, insulation and earthing. The case protects the module but does not replace correct electrical installation.Is there a larger version?
Yes, the Waterproof Box R2 is larger and compatible with 30+ newer Sonoff devices (TH Origin/Elite, POW Origin/Elite, NSPanel, the TX series). If your module does not fit the IP66, choose the R2.
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Manager guidance
Questions about this product?
A CasaSmart manager calls you within 1–2 working hours and answers anything — compatibility, install, alternatives.
+373 60 944 922Updated: · reviewed by CasaSmart Expert Team