Room thermostat TECH ST-281 with RS communication, 2 mm glass front, black

TECH ST-281 is a room thermostat designed to control indoor temperature for residential and light commercial heating and cooling systems. The device features a slim 2 mm glass front in black and provides setpoint management together with an RS communication interface for integration with external controllers and building automation systems. The thermostat delivers basic temperature regulation functions while enabling remote monitoring and configuration through its serial communication link.

Advantages

The thermostat combines a tempered glass front with a compact profile that fits standard wall mounting. RS communication allows reliable data exchange with controllers and building management systems, supporting centralized monitoring and adjustment. The black finish offers a discreet visual appearance suitable for modern interiors, and the control logic is tailored for straightforward temperature setpoint changes and stable regulation of HVAC equipment.

Suitable for

• Residential central heating and cooling control
• Small offices and light commercial spaces requiring room temperature management
• Integration with controllers and building automation via RS communication
• Applications where a low-profile, glass-front thermostat is preferred

Key specifications

• Front material: 2 mm tempered glass
• Color: black
• Interface: RS communication port for serial integration
• Function: room temperature setpoint control and regulation for HVAC systems
• Mounting: wall-mounted unit compatible with standard electrical boxes

How to use

Install the thermostat on a suitable interior wall at typical head height, away from direct sunlight, drafts and heat sources for accurate temperature sensing. Connect power and communication lines according to the system wiring diagram and configure the RS communication parameters to match the host controller. Set the desired temperature setpoint using the front controls and verify correct operation of connected heating or cooling equipment. For integration, ensure addressing and protocol settings on both the thermostat and the controller are aligned before commissioning.

Usage recommendations

Place the thermostat in a representative location for the area to be controlled and avoid mounting near windows, doors, or ventilation outlets. When integrating via RS communication, use shielded cabling and follow grounding best practices to reduce interference. Perform a brief functional test after installation to confirm setpoint response and communication with the building controller.