Products & Manufacturers / Room Thermostats / Wired Thermostats / General Life CERES HT340S
GENERAL LIFE · ROOM THERMOSTAT

General Life CERES HT340S

CERES HT340S 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: CERES
Model: HT340S
Category: Room thermostat

Key Specifications — CERES HT340S (Wired)

Dimensions (H/L/W)85mm / 125mm / 20mm
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 CERES HT340S 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.

Related Pages

CERES series · General Life

Official Resources

Source: General Life’s CERES HT340S wired product specification. Technical data checked on 11 October 2026.

Official CERES HT340S Wired Product Page

AirAlign is an independent informational resource.

Engineering use and replacement checks — CERES HT340S

Wired configuration: The CERES HT340S faceplate is specified as 85mm / 125mm / 20mm, and its room electronics use 3V DC (2 x AAA Alkaline Battery). Preserve accessible battery replacement and measure wall coverage and the cable termination before replacing a smaller or larger existing thermostat.

Heating-plant compatibility: The model’s stated normally-open relay rating is 2A/30VDC (Resistive Load) 0.5A/125VAC (Resistive Load). This is not equivalent to universal mains boiler control: establish the heat source’s thermostat signal voltage, whether it expects a voltage-free contact, and its permissible switching load.

Temperature selection: The listed setpoint range is (5°C) – (30°C), with (-2.0°C) – (+2.0°C) operating sensitivity. Do not interpret the configurable sensitivity range as a ±2°C sensor-accuracy promise. Consider short-cycling protection and the heating system’s thermal lag when setting the controller.

Variant and evidence scope: This page records the wired CERES HT340S only; RF-receiver versions change connection and switching hardware, and SMART versions require independent connectivity checks. Consult the existing General Life exact-model source and current installation manual before ordering.