General Life ARUNA HT10

ARUNA HT10 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: ARUNA
Model: HT10
Category: Room thermostat

Key Specifications — ARUNA HT10 (Wired)

Dimensions (H/L/W)85.7mm / 85.7mm / 33.5mm

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)0.3°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 ARUNA HT10 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.

ARUNA series · General Life manufacturer

Official Resources

Source: General Life’s ARUNA HT10 wired product specification. Technical data checked on 11 October 2026.

Official ARUNA HT10 Wired Product Page

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

Engineering selection — ARUNA HT10

Wall fit and supplied power: ARUNA HT10 lists housing dimensions 85.7mm / 85.7mm / 33.5mm; its compact form should be checked against the actual wall plate and existing wiring route. The thermostat is specified with 3V DC (2 x AAA Alkaline Battery). Do not confuse the wired relay connection with a mains-powered room unit.

Heating input: Its listed normally-open relay load is 2A/30VDC (Resistive Load) 0.5A/125VAC (Resistive Load). Those resistive-load figures do not license direct switching of all boiler voltages or inductive loads. Check the boiler’s thermostat terminals, any low-voltage dry-contact requirement and the wiring diagram before specifying a replacement.

Comfort and cycling: The documented user setpoint span is (5°C) – (30°C) and the operating sensitivity entry is 0.3°C. The stated sensitivity should be interpreted as control behavior, not automatically a ± accuracy band for the measuring element. A similarly named RF or SMART suffix is a different integration configuration and must not inherit this wired unit’s relay or power data.

Selection boundary: The dimensions, supply and controller values above come from the recorded exact-model source; feature availability, contact loading and installation approvals still require current maker documentation for the ordered revision.

ARUNA HT10 — baseline 0.3°C switching

The wired ARUNA HT10 publishes a 0.3°C operating sensitivity and 5–30°C setpoint range on a square 85.7 mm thermostat. This sensitivity is a heat-call switching characteristic, not the maker’s quoted 0.1°C measurement figure. Before changing from MITRA HT10, compare front-panel usability and installation drawings rather than assuming they are identical just because electrical ratings coincide. A standard 3 V battery thermostat uses a wired NO contact, not an RF receiver.