Complete monitor
Pool LoRa • 8-in-1
$189.00
pH · Free available chlorine · ORP · Salinity · TDS · EC · Specific gravity · Water temperature
RVN-WQ8-LORA
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Manufacturer product image. Screen and app values are illustrative, not live data.
RVN-WQ7-RS485 / M485
7-in-1 WiFi RS485 Aquarium Water Monitor
A complete monitor for aquarium, reef, koi and hydroponic water loops. Keep seven water readings in one connected view.
$149.00
USD · Complete monitor
Available
Display + matching wired RS485 probe.
No free chlorine or dissolved oxygen. Third-party probe compatibility is not established.
Before you connect
Matching probe → Wired RS485 → Display → 2.4 GHz WiFi → Tuya app
Shipping and taxes calculated at checkout. Return requests within 30 days of delivery; support approval required before mailing.
Questions before purchase? Contact support →Listed parameters
Know exactly what you are measuring.
Units explain the parameter, not an accuracy, range or safety claim. Compare with the unit and temperature reference shown by your exact device.
| pH | Acidity / alkalinity | pH |
|---|---|---|
| ORP | Oxidation–reduction potential | mV |
| TDS | Total dissolved solids estimate | ppm / device-specific scale |
| EC | Electrical conductivity | µS/cm or mS/cm |
| Salinity | Salt-related reading | Compare using the same unit reference |
| Specific gravity | Density relative to a reference | SG / temperature reference matters |
| Water temperature | Temperature of the water | °C / °F display reference |
No free chlorine or dissolved oxygen. Third-party probe compatibility is not established.
Use the units and reference on your exact model. No ammonia, nitrite or nitrate measurements; not a drinking-water safety test.
Connection architecture
Understand every stage of the connection.
- 01Matching probe
- 02Wired RS485
- 03Display
- 042.4 GHz WiFi
- 05Tuya app
What you are buying
Display + matching wired RS485 probe.
Important scope
No free chlorine or dissolved oxygen. Third-party probe compatibility is not established.
Resources / your exact model
Start with the right guide.
Set up
Install the probe in the water system, connect the RS485 lead to the display, then pair the display with 2.4 GHz WiFi and calibrate as directed.
Open model-specific support →Calibration & reference
Use the model-specific calibration sequence and supplied materials. Do not apply another model’s targets or sequence.
Open the matching guide →Care & troubleshooting
Check placement, units and recent calibration. Follow model-specific cleaning, handling and storage guidance.
Open model-specific support →Questions, answered
Clarity before you buy.
Can I connect a third-party RS485 probe?
Compatibility is not established. Ask support with the exact host and probe details before replacing the matching probe.
Does ORP measure chlorine or dissolved oxygen?
No. ORP is a separate parameter. This model does not measure chlorine or dissolved oxygen.
Which calibration guide should I use?
Use the M485 model-specific preparation, three-point pH and salinity / SG reference guide.
Customer experience
Share what you learned.
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There is no published rating or average to show. Explore the device guide or share your own experience for review.
Share an experience →Before and after purchase
A clear next step.
A model-specific answer
Contact support with your exact model, order reference and setup details.
View details →Shipping without guesswork
Usually 1–3 business days to process after payment, not delivery time. Destination eligibility and shipping costs at checkout.
View details →Returns with guidance
Request within 30 days of delivery. Approval is required before mailing. Contact within 7 days for damage, defects or wrong items.
View details →Different environments / different systems
Not every water monitor is a pool monitor.
Complete monitor
Wireless water • 7-in-1
$169.00
pH · ORP · TDS · EC · Salinity · Specific gravity · Water temperature
RVN-WQ7-WIFI / 10.0 Series
View device
Complete monitor
HY485 • Air + nutrient water
$129.00
Air temperature · Relative humidity · pH · Water temperature · EC · TDS
RVN-HYDRO-6IN1 / HY485
View deviceAquarium RS485 • 7-in-1$149.00
M485 setup and calibration
Calibrate the M485 with confidence
Follow the official videos in order before relying on pH, salinity or specific gravity readings.
- Prepare pH buffer solutions
- Complete three-point pH calibration
- Adjust salinity and specific gravity
Product help