The Seeed Studio S‑YM‑01B simulates real leaf wetness and temperature, crucial for monitoring crop health, disease risk, and irrigation efficacy. Featuring Frequency Domain Reflectometry (FDR) technology, this sensor delivers accurate 0–100% leaf wetness readings (0.1% resolution, ~5% accuracy), along with compensated temperature measurement (–40 to 80 °C, 0.1 °C resolution, ±0.5 °C accuracy). Designed for precision and durability, its IP68-rated housing, resin sealing, and TVS/ESD protections ensure reliable operation in extreme outdoor environments. Compatible with MODBUS‑RTU RS485, analog voltage/current outputs, and outfitted with reverse-polarity protection, it integrates seamlessly into environmental monitoring and smart agriculture systems.
Product Features
- Leaf wetness (0–100%) and temperature monitoring via FDR
- High-durability IP68 enclosure with built‑in protections
- RS485 Modbus‑RTU, analog voltage, or analog current interfaces
- Accuracy: ±5% leaf wetness, ±0.5 °C temperature
- Operates from 3.6–30 V DC; low power consumption (6 mA)
Product Downloads
| Specification | Details |
|---|---|
| Model | S‑YM‑01B |
| Protocol | MODBUS‑RTU RS485 / Analog Voltage / Analog Current |
| Power Supply | 3.6–30 V DC |
| Power Consumption | 6 mA @ 24 V DC |
| Leaf Wetness | 0–100%, 0.1% resolution, ±5% accuracy |
| Temperature | –40 to 80 °C, 0.1 °C resolution, ±0.5 °C accuracy |
| Measurement Technique | FDR with thermal mimicry of leaf |
| Protection | IP68, resin-sealed, TVS/ESD, reverse power protection |
| Operating Temp | –40 °C to 85 °C |
| Cable | 2 m length |
| Dimensions | 65 × 13 × 145 mm |
Shipping Policy
We provide worldwide shipping using reliable tracked
shipping services.
Local Shipments within Cyprus
Shipments in Cyprus are performed usually with ACS Courrier
or AKIS Express. In some cases, we might deliver the products ourselves. A pick-up
option from our locations is also available.
International Shipments
International shipments are performed using Express Airway
Shipping Services. We are currently shipping orders with TNT Express and FedEX.
As soon as your shipment is dispatched you will receive the shipment confirmation
including the shipment tracking number which you can use to track your order
from the shipment provider website.
We dispatch orders within 1-3 workdays after the day of the
order placement.
General Return Policy
We have a 30-day return policy, which means you have 30 days
after receiving your item to request a return.
To be eligible for a return, your item must be in the same
condition that you received it, unworn or unused, with tags, and in its
original packaging. You’ll also need the receipt or proof of purchase.
To start a return, you can contact us at sales@cyric.eu. If
your return is accepted, we’ll send you a return shipping label, as well as
instructions on how and where to send your package. Items sent back to us
without first requesting a return will not be accepted.
For any further information, help and support regarding the
shipping and/or return process you can contact us at:
- Email: sales@cyric.eu
- Telephone: +357 22 282828