🇬🇷 Greek Design
Home Assistant
MQTT
Expandable
ESP32-S3 · BLE
Monitoring Device
SHH-TELEMETRY
SHH-TELEMETRY is the successor to BLUE, now built on the ESP32-S3 with Bluetooth LE. Same functionality — up to 5 Dallas DS18B20 sensors, pressure and level — plus 2 NTC thermistor inputs and 2 extra 0-5V analog inputs via an add-on. Monitor everything from your phone, 24/7.
Technical Specifications
Specs
5x DS18B20
Temperature sensors
T / RH / Pa
Temp / Humidity / Barometric
0–10 bar
Analog pressure sensor
Ultrasonic
Level measurement
2
Opto-isolated digital inputs
2x NTC
NTC thermistor inputs
2x 0-5V
Extra analog inputs (add-on)
PWM I/O
PWM input & output
HATs
Expandable with modules
Pinout Diagram
Wiring
Features
- Up to 5 waterproof Dallas DS18B20 sensors (1-Wire)
- Temperature / humidity / barometric pressure sensor
- Analog pressure sensor 0–10 bar
- Ultrasonic sensor for tank level measurement
- 2 opto-isolated digital inputs
- 2 NTC thermistor inputs (NT1 / NT2)
- 2 extra 0-5V analog inputs via add-on (ADS1115)
- PWM input and output
- Bluetooth LE (ESP32-S3)
- Expandable with additional HATs (modules)
- Home Assistant & MQTT integration
- 🇬🇷 Made in Greece — 2-year warranty
Applications
- Boiler room monitoring (5 temperatures)
- Water or oil tank level control
- Closed-circuit pressure monitoring
- Environmental monitoring (T, RH, Pa)
- NTC sensor measurement for boilers and water heaters
- Home Assistant alerts (email, push, Telegram)
- Data logging in Home Assistant history
Interested in SHH-TELEMETRY?
Contact us for pricing, availability and technical questions.