General Life GAIA HT15 RF

GAIA HT15 RF is a General Life wireless room thermostat. The room unit communicates with a separate RF receiver, which switches compatible equipment through its relay.

Model Identification

Manufacturer: General Life
Series: GAIA
Model: HT15 RF
Category: Wireless room thermostat
Connection: Radio link to receiver; receiver relay to equipment

Room Thermostat Specifications

Dimensions (manufacturer order)85.7mm / 85.7mm / 30.1mm

Power supply3V DC (2 x AAA alkaline batteries)

Temperature measurement figure (manufacturer-reported)0.1°C

Operating sensitivity (manufacturer-reported)(-2.0°C) – (+2.0°C)

Setpoint range(5°C) – (30°C)

Battery life (manufacturer-reported)1 year (2 x AAA)

Ambient operating temperature(-10°C) – (+50°C)

Storage temperature(-20°C) – (+60°C)

Receiver Specifications

Power supply230V (AC)

Dimensions (manufacturer order)90mm / 90mm / 25mm

Relay NO switching current (resistive load)7A (240VAC – resistive load) 10A (120VAC – resistive load)

Ambient operating temperature(-10°C) – (+50°C)

Storage temperature(-20°C) – (+60°C)

Specification scope: These values apply to the RF configuration. The thermostat and receiver have different power supplies. The receiver’s mains supply must not be confused with the equipment’s thermostat input. Relay ratings are for resistive loads. The 0.1°C measurement figure is manufacturer-reported and does not establish an independent ±0.1°C accuracy claim.

Compatibility and Installation

Confirm that the heating or cooling equipment supports the receiver’s on/off relay connection, and follow the exact equipment and thermostat manuals. The RF link replaces the cable between room unit and receiver; the receiver still needs power and an equipment connection. Electrical installation should be performed by a qualified installer.

Wireless thermostats · GAIA series · General Life manufacturer

Official Resources

Technical data checked against the model-specific manufacturer RF product page on 11 October 2026. An explicitly matching model-family RF manual was also checked.

Official GAIA HT15 RF Product Page
Official Model-Family RF User Manual
Official Wireless Catalog

AirAlign is an independent informational resource and is not affiliated with General Life.

RF engineering checklist — GAIA HT15 RF

Room transmitter: The GAIA HT15 RF housing measures 85.7mm / 85.7mm / 30.1mm and uses 3V DC (2 x AAA alkaline batteries); battery accessibility and location away from direct sunlight or radiator drafts are essential for stable room-temperature control.

Remote relay unit: The separate 90mm / 90mm / 25mm receiver requires 230V (AC). Its listed normally-open relay capacity is 7A (240VAC – resistive load) 10A (120VAC – resistive load) for the indicated resistive-load conditions. Evaluate powered boiler inputs, volt-free controls and isolating contacts before commissioning; do not use resistive ratings as inductive motor start ratings.

Settings and RF: The product card lists (5°C) – (30°C) setpoint adjustment and (-2.0°C) – (+2.0°C) operating sensitivity. This setting span is not the element’s ±2°C accuracy specification. Check radio pairing, range through the site structure, loss-of-link control behavior and receiver manual override after installation.

Version integrity: The GAIA HT15 RF wireless model is not a documented equivalent of its wired or SMART relatives. Match the manufacturer receiver pairing guide, order code and heating-controller terminals to the supplied revision.