Products & Manufacturers / Room Thermostats / Wired Thermostats / General Life SENNA HT15
GENERAL LIFE · ROOM THERMOSTAT

General Life SENNA HT15

SENNA HT15 is a General Life room thermostat. This profile documents the wired version’s published technical data and keeps other manufacturer-listed configurations separate.

Model Identification

Manufacturer: General Life
Series: SENNA
Model: HT15
Category: Room thermostat

Key Specifications — SENNA HT15 (Wired)

Dimensions (H/L/W)85.7mm / 85.7mm / 30.1mm
Power supply (manufacturer: Operating Current)3V DC (2 x AAA Alkaline Battery)
Relay NO Switching Current2A/30VDC (Resistive Load) 0.5A/125VAC (Resistive Load)
Temperature measurement accuracy (manufacturer-reported)0.1°C
Operating sensitivity (manufacturer-reported)(-2.0°C) – (+2.0°C)
Setpoint range (manufacturer: Operating Temperature Range)(5°C) – (30°C)
Battery Life1 Year (2 x AAA)
Ambient operating temperature(-10°C) – (+50°C)
Storage Temperature(-20°C) – (+60°C)
Specification scope: These values refer to the wired SENNA HT15 only. RF and SMART versions have separate receiver, power and connectivity requirements. The manufacturer’s 0.1°C measurement figure is reproduced as reported; it is not an independently established ±0.1°C accuracy claim. Check the current manual and exact variant before installation.
Document revision: The current product pages and the shared HT15 / HT15S / HT16S manual report different case depths (30.1 mm and 33.65 mm respectively). The dimensions above follow the linked source. Compare the shared manufacturer manual and confirm the exact hardware revision before installation.

Related Pages

SENNA series · General Life

Official Resources

Source: General Life’s SENNA HT15 wired product specification. Technical data checked on 11 October 2026.

Official SENNA HT15 Wired Product Page

AirAlign is an independent informational resource.

SENNA HT15 — engineering and installation notes

Physical fit and supply: The linked model sheet records 85.7mm / 85.7mm / 30.1mm and 3V DC (2 x AAA Alkaline Battery). Check the wall plate, cable entry, sensing location, battery access and space for the SENNA HT15 enclosure before substitution.

Heat source interface: The stated relay rating is 2A/30VDC (Resistive Load) 0.5A/125VAC (Resistive Load). This manufacturer resistive-load value cannot establish suitability for all boiler control inputs or inductive loads; compare terminal voltage, open/close logic, isolation and load type with the receiver appliance’s wiring diagram.

Room control: Recorded setpoint limits are (5°C) – (30°C) and operating sensitivity is (-2.0°C) – (+2.0°C). A sensitivity configuration range must not be advertised as temperature-measurement accuracy. Validate switching behavior, heat source cycling and the building’s thermal response during commissioning.

Product identity: The SENNA HT15 wired card does not establish the mains receiver, wireless link or app features of an RF/SMART version, even if manufacturer families share an aesthetic. Use current General Life installation documentation for the ordered suffix.