In a Chisinau home the pump runs only when the return drops below the threshold set in the app.
The probe mounts on the flow or return pipe and feeds the real temperature to a Shelly Plus 1PM with Add-on.
What it is, who it's for, what it does
About this product
The Shelly DS18B20 sensor is an external temperature probe on a 3-metre cable, designed as an accessory for Shelly devices that have a sensor input. It does not work on its own: the probe connects to a Shelly Plus Add-on fitted to a Shelly Plus, Gen3 or Gen4 relay, or directly to a Shelly Uni / Plus Uni.<br><br>The capsule is made of stainless steel with IP67 protection, so it can be used in damp areas or outdoors. The digital 1-Wire interface delivers stable readings without the interference typical of analog signals, and up to 5 DS18B20 probes can be connected to a single Plus Add-on to measure temperature at several points. The measuring range is -55 to +125°C with ±0.5°C accuracy between -10°C and +85°C.
- DeliveryFree from 1500 MDL
- Returns30 days to return
- Warranty24 months
15+projects delivered300+devices installed3 yearslocal-first experienceChișinăushowroom Columna 153Book a showroom visit →
Where it works
Use cases
A phone notification fires when the boiler water rises above or falls below the chosen limit.
The IP67 capsule clamped to a boiler tracks water temperature and triggers alerts at extreme values.
Greenhouse ventilation switches on automatically when the probe reports overheating in summer.
The waterproof probe measures temperature in a greenhouse, cellar or water tank.
For the installerTechnical specificationsfull spec · wiring · datasheet
For the installer
Technical specifications
full spec · wiring · datasheet
Other
- Tip senzor
- DS18B20 digital
- Rezolutie
- 9-12 bit
- Compatibilitate
- Shelly Plus Add-on, Shelly Uni / Plus Uni
Environment
- Interval de masurare
- -55...+125 °C
- Precizie
- ±0,5 (intre -10 si +85°C) °C
Connectivity
- Interfata
- 1-Wire
- Sonde max. per Plus Add-on
- 5
Physical
- Lungime cablu
- 3 m
- Material capsula
- Inox
- Protectie
- IP67
- Greutate
- 26 g
Support
Frequently asked questions
Which Shelly devices is the DS18B20 probe compatible with?
The probe connects to a Shelly Plus Add-on fitted to a Plus, Gen3 or Gen4 relay, or directly to a Shelly Uni / Plus Uni. It cannot be wired straight to an ordinary Shelly relay without the Add-on.Does the probe work on its own without another device?
No. It is a passive accessory: it needs a Shelly host device (Plus Add-on or Uni) with a sensor input to report temperature to the app.How many probes can I connect to a single Plus Add-on?
Up to 5 DS18B20 probes can be connected to one Plus Add-on over the 1-Wire bus, each with its own unique 64-bit address.What is the measuring range and accuracy?
The range is -55 to +125°C, with typical accuracy of ±0.5°C between -10°C and +85°C and selectable resolution from 9 to 12 bits.Can the probe be used in water or outdoors?
Yes. The capsule is stainless steel with IP67 protection, so it resists moisture and can be used on pipes, in water tanks, cellars or greenhouses.Can I install the DS18B20 probe myself?
Installation involves wiring to low-voltage terminals in a panel or junction box next to a 230 V relay, so we recommend a qualified electrician; the CasaSmart team can help.
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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