General Life MITRA HT15S

MITRA HT15S 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: MITRA
Model: HT15S
Product category: Room thermostat

Key Specifications — MITRA HT15S (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 MITRA HT15S 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.

Manufacturer-Listed Configurations

The official General Life catalog lists this model in wired and wireless (RF) configurations, and also lists a smart configuration. These are different product variants; do not assume their wiring, power supply or connectivity specifications are interchangeable.

MITRA series · General Life manufacturer

Official Resources

Source: General Life’s MITRA HT15S wired product specification. Technical data checked on 11 October 2026.

Official MITRA HT15S Wired Product Page

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

Engineering selection notes — MITRA HT15S

Physical and power compatibility: The published MITRA HT15S dimensions are 85.7mm / 85.7mm / 30.1mm, identifying the compact square-format faceplate for wall placement. The room unit’s listed supply is 3V DC (2 x AAA Alkaline Battery). A wired heating-control connection does not by itself mean the thermostat is powered by building mains.

Switching-circuit check: The cited relay specification is 2A/30VDC (Resistive Load) 0.5A/125VAC (Resistive Load). This is a contact rating under its stated load conditions—not a universal boiler compatibility statement. Confirm dry-contact versus powered-input requirements, voltage, wiring isolation and inductive loading at the receiving appliance before installation.

Temperature control and variant comparison: The product card lists a setpoint span of (5°C) – (30°C) and sensitivity of (-2.0°C) – (+2.0°C). A sensitivity entry containing −2.0°C to +2.0°C needs its precise adjustment definition checked in the model manual; it should not be represented as a ±2°C sensor-accuracy tolerance. The MITRA HT15S wired configuration must be compared separately with any RF-receiver or smart-connectivity suffix. Similar General Life series facias do not prove identical switching ratings or features.

Evidence boundary: These engineering checks interpret the model figures already recorded above; they are not a new manufacturer accuracy, performance or certification claim. Use the linked exact-model General Life document for commissioning, firmware/features and current revision.

MITRA HT15S — verify display and settings versus HT15

HT15S is a separate wired SKU even though its manufacturer table shares the HT15 group’s 85.7×85.7×30.1 mm housing and nominal ±2°C configurable control sensitivity range. The ‘S’ designation should not be interpreted as proof of Wi-Fi, radio or a new supply voltage. Compare the exact front controls and instruction manual for the purchased revision, then set hysteresis and boiler on/off wiring deliberately for the heating system.