Quick Answer: The Aiper HydroComm Pro (about $299.98, per Home Depot’s listing) is a floating, solar-powered pool accessory that does two jobs at once — 24/7 water-quality testing (pH, ORP, EC, TDS, temperature) and underwater communication with compatible Aiper Scuba robots, enabling real-time status and one-tap surface retrieval. The counterintuitive finding: Aiper also sells a pricier HydroComm Pure at $399.99 (Aiper’s own store) that does only the communication piece, with none of the water-testing hardware — so the cheaper “Pro” model is the better buy for nearly everyone searching for either one.
If you’ve seen “HydroComm” mentioned on an Aiper Scuba X1 product page and searched to find out exactly what it costs, the confusion is understandable: Aiper sells three devices under near-identical names, and the naming doesn’t follow the usual “Pro costs more” logic.
The three HydroComm devices, compared
| Device | Water testing | Robot communication | Price |
|---|---|---|---|
| HydroComm (base) | Yes — 5-in-1 | No | ~$299.99 list / $274.99 sale |
| HydroComm Pro | Yes — 5-in-1 | Yes | $299.98 |
| HydroComm Pure | No | Yes | $399.99 |
Aiper HydroComm Pro
- 5-in-1 water testing: pH, ORP, EC, TDS, temperature, tracked 24/7 via the Aiper app.
- Underwater communication with the Scuba X1, X1 Pro and X1 Pro Max — real-time status, one-click retrieval.
- Solar-powered (4W panel), floats in the pool, near-industrial-grade sensor accuracy per Aiper's own specs (±0.2 pH).
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By the numbers
- Price gap runs backwards: HydroComm Pure costs $399.99, exactly $100.01 more than the HydroComm Pro’s $299.98 — despite the Pure lacking the Pro’s entire water-testing feature set, per Aiper’s own product pages and Home Depot’s listing.
- Same monitoring hardware, two prices: the base HydroComm and HydroComm Pro both run the identical 5-in-1 water-testing sensor array; the only difference is the Pro’s added robot-communication radio, yet Home Depot lists them within a dollar of each other ($299.99 vs $299.98).
- Three-robot compatibility: HydroComm Pro is confirmed compatible with exactly three Scuba tiers — X1, X1 Pro, and X1 Pro Max — per Aiper’s own compatibility page, not the wider Scuba lineup (N1/N1 Pro/S1/S1 Pro aren’t supported).
Why this naming trips people up
Across Aiper’s own Scuba lineup, “Pro” reliably means a step up in price and capability — the Scuba X1 Pro costs more than the base X1 and adds native HydroComm pairing built in. It’s reasonable to assume the same pattern holds for HydroComm itself. It doesn’t: “Pure” is the premium-priced name here, not “Pro,” and Pure is also the one with fewer features (communication only, no water testing) — the opposite of what “Pro” vs “Pure” naming usually implies elsewhere in consumer electronics.
For nearly every buyer, that makes the decision simple: HydroComm Pro is strictly more capable than HydroComm Pure for less money. The only scenario where Pure makes sense is if you already own a separate pool water tester and specifically don’t want a second floating monitor cluttering the pool — a narrow, unusual case.
Do you actually need one?
If you own an Aiper Scuba X1 or X1 Pro Max, HydroComm Pro is the accessory that adds the underwater real-time control and one-tap retrieval those models market as optional add-ons (our Scuba X1 and X1 Pro Max reviews cover this in each model’s own pricing). If you own the X1 Pro, you already have that pairing built in per Aiper’s spec sheet, so HydroComm Pro would mainly add the water-testing half rather than a new capability.
If you don’t own a compatible Scuba robot at all, HydroComm Pro still functions as a standalone $299.98 water-quality monitor — but at that price, it’s competing with dedicated pool water testers that don’t bundle a feature you can’t use.
The bottom line
Aiper’s HydroComm naming makes this harder to research than it should be, but the actual buying decision is straightforward once the three SKUs are laid out side by side: the HydroComm Pro at $299.98 does everything the pricier HydroComm Pure ($399.99) does, plus full 5-in-1 water-quality testing the Pure skips entirely. Unless you specifically don’t want water testing, HydroComm Pro is the one to buy. For the robots it pairs with, see our full Aiper Scuba lineup explained guide.