COMET H3061 – External Cable Probe for Temperature and Humidity + 2 High-Voltage Relays 230 VAC/8 A

COMET H3061 – Temperature and humidity controller with external cable probe -30 to +105 °C / 0–100 %RH, dew point + 2 power relays 230 VAC / 8 A 

The COMET H3061 is a powerful temperature and humidity controller (humidistat + thermostat) with an external cable probe (1 meter, optional 2 or 4 m) and two power relay outputs (230 VAC / 8 A / 2000 VA) – the ideal solution for demanding climate control in warehouses, cold rooms, greenhouses, drying systems, technical areas, server rooms, or production environments. Thanks to its high switching capacity, large electrical loads such as fans, heaters, dehumidifiers, compressors, or pumps can be controlled directly – with no need for additional contactors or relay modules.

The external combined probe measures temperature from -30 to +105 °C (±0.4 °C) and relative humidity from 0 to 100 %RH (±2.5 %RH from 5 to 95 % at 23 °C). The dew point is calculated with high precision (±1.5 °C at T<25 °C and RH>30 %). Additional humidity parameters are also available: absolute humidity, specific humidity, mixing ratio, and specific enthalpy. The large dual-line LCD displays all measured values and relay statuses. The two relay outputs (230 VAC / 8 A / 2000 VA AC / 192 W DC) can be freely configured via temperature, humidity, or dew point thresholds – perfect for direct control of high-power loads.

The robust IP65 enclosure protects against dust and water jets – ideal for humid or dusty environments (-30 to +80 °C). The built-in acoustic alarm (buzzer) provides a warning when limits are exceeded and can be disabled if needed. Power supply 110–240 VAC – directly from mains, no separate low-voltage power source required. The controller is maintenance-free, long-term stable, and available with a traceable calibration certificate (according to EN ISO/IEC 17025) – ensuring top reliability for critical applications. The external probe allows optimal placement independent of the controller’s mounting location.

Why the COMET H3061 is the professional high-power T+RH controller:

• External cable probe, 1–4 m – flexible for hard-to-reach measurement points
• 2 power relays – 230 VAC / 8 A / 2000 VA – for heavy loads
• 3-in-1: temperature + humidity + dew point – all humidity parameters available
• High precision – Temp. ±0.4 °C | Humidity ±2.5 %RH | Dew point ±1.5 °C
• Acoustic alarm – switchable buzzer for limit exceedance
• IP65 housing – weatherproof for indoor and outdoor use
• Large dual-line LCD – displays values and relay status
• Direct mains supply 110–240 VAC – no low-voltage installation required
• Long-term stable and maintenance-free – with calibration certificate

Technical data H3061:

• Temperature range: -30 to +105 °C (±0.4 °C)
• Humidity: 0 to 100 %RH (±2.5 %RH from 5 to 95 % at 23 °C)
• Dew point: -60 to +80 °C (±1.5 °C at T<25 °C and RH>30 %)
• Relays: 2 × 230 VAC / 8 A / 2000 VA AC / 192 W DC
• Resolution: 0.1 °C / 0.1 %RH
• Probe cable length: 1 meter (standard)
• Power supply: 110–240 VAC
• Operating temperature: -30 to +80 °C
• Protection rating: IP65 (electronics), IP40 (probe)
• Dimensions: 136 × 161 × 45 mm; probe Ø 18 mm, length 88 mm
• Weight: approx. 350 g
• Warranty: 3 years

Perfect for:

• Warehouse and cold room climate control
• Greenhouses and agriculture
• Drying and ventilation systems
• Server rooms and technical centers
• Direct control of fans / dehumidifiers / heaters
• Alarm and threshold monitoring
• Stand-alone regulation without cloud connection
• Humidity and temperature monitoring in humid environments

Installation and commissioning – done in minutes

Mount the unit on a wall or mast, connect mains voltage (230 VAC) and wiring to the relays, position the probe where needed – done! Configure thresholds via buttons and LCD display or fine-tune using PC software. No calibration required when replacing the probe.

Available versions:

• Cable length 1 meter
• Cable length 2 meters
• Cable length 4 meters

Summary:

• Hygrostat with two relay outputs
• For indoor and outdoor use
• Measurement of relative humidity and temperature via cable probe
• Measured values can also be converted into other humidity units: dew point temperature, absolute humidity, specific humidity, mixing ratio, and specific enthalpy.

Scope of supply:

• H3061 – depending on selected cable length (see above)
• User manual
• Traceable calibration certificate
• Free TSensor software for transmitter configuration