🌡️ Stay cool, stay smart — control your climate like a pro!
The SIEMENSRDH100 Digital Thermostat offers precise temperature control from 5 to 30°C, powered by 2 AA batteries for flexible installation. Its compact 120x90x26.9 mm rectangular design features a clear graphical display and volt-free contacts, making it an ideal choice for energy-conscious professionals seeking reliable, stylish climate management.
| Manufacturer | Siemens |
| Part Number | S55770-T377 |
| Product Dimensions | 9 x 2.69 x 12 cm; 230 g |
| Batteries | 2 AA batteries required. |
| Item model number | S55770-T377 |
| Colour | White |
| Style | Active |
| Material | Plastic |
| Shape | Rectangular |
| Power Source | Battery Powered |
| Voltage | 1.5 Volts |
| Item Package Quantity | 1 |
| Display style | graphical |
| Plug profile | Wall Mount |
| Special Features | With cable |
| Usage | Fleece |
| Included Components | S55770-T377 |
| Batteries included? | No |
| Batteries Required? | No |
| Item Weight | 230 g |
M**B
Perfect
Wanted a digital thermostat to replace old Honeywell mechanical device. This SIEMENS one is solid, well made, clear and easy to install and use. Only slight niggle is that it is large but .. so what.. its good.
B**.
Ideal replacement for mechanical stats.
Installation is simplicity itself, and I was fascinated to see it had not only binary control (on/off) but also PID (Proportional Integral Derivative), something I certainly didn't expect. Frankly on my system the binary control is perfectly adequate, Good clear display and even my wife likes the comparative hi tech display that our previous and very ancient Honeywell mechanical stat simply did not have. Easy to see when the heating is actually on/off, what the setpoint temperature is and what the actual measured temp is. All in all, a very nice, simple bit of kit.
A**R
Buyer beware
Nothing wrong with the thermostat but you simply cannot pair with an existing receiver. Siemens usually supply thermostat and receiver together and pre-sync at manufacture. Buyer beware. These thermostats should not be sold separately.
A**N
Good Value
Very well made and simple to fit. Replaced it for my old Honeywell mechanical stat in 15mins
M**A
Easy to install
Easy to installLooks greatWorks very well
A**R
Accurate temperature
This replaced a cheaper version with a timer. The temperature appears accurate and the large display is easy to read.
D**S
Worth changing from old style
Easy to fit and use, big improvement over the old dial one it replaced
B**K
Disappointing
No fitting instructions. Once installed, it switched the heating on, then off immediately. Unfortunately, left it too long before installing it, now outside return period, so it goes in the bin. Re-installed very old Honeywell analogue switch, works fine!
Trustpilot
2 months ago
2 weeks ago
