Description
Simple dial control that keeps your humidifier working within a target range
The HR-EHSA is a standalone analogue humidistat that pairs with the Faran HR-15 and HR-50 humidifiers, or with most other standard plug-in humidifiers. Set the dial to the humidity level you want and the unit switches the connected humidifier on and off to hold the room within that band, using a nylon-loop sensor that reacts directly to ambient moisture rather than a fixed timer cycle.
Target humidity moves through a grow - clones and seedlings want it high, flower wants it pulled back down to reduce mould pressure - so a dial-set humidistat lets a grower retune the target at each stage change without touching the humidifier itself. It solves the basic problem of running a humidifier on manual or on a timer, where the room either overshoots into damp, mould-friendly territory or drops back down before the next cycle kicks in.
The unit mounts on the wall, ideally at canopy height where the reading actually reflects what the plants are experiencing, and its ON/OFF micro-switch is rated to drive a compatible humidifier directly without needing a separate relay or contactor in the circuit.
- Dial control across a 10-80% RH range for straightforward stage-to-stage adjustment
- Direct switching of a compatible humidifier up to 2.2A without extra relay hardware
- Nylon-loop sensor responds to real ambient moisture rather than a fixed cycle
- Wall-mountable for accurate canopy-height readings
- Pairs directly with the Faran HR-15 and HR-50 humidifiers
- Measurement range: 10% - 80% RH
- Accuracy: ±5%
- Operation span: 3%
- Switch capacity: 2.2A
- Operating temperature: 10-40°C
- Sensor type: nylon loop
- Dimensions: 140 x 95 x 45mm
- Power: 220V / 50-60Hz, 2m cord
- Power cord: 2 m
- Power supply: 110 V or 220 V, 50/60 Hz
- Measuring range: 10-80%RH
- Operating temperature: 10-40°C
- Controls: One humidifier, on/off by humidity
- Accuracy: ±5%RH
- Display: Set-point dial, no display
- Max load: 2.2 A microswitch
- Sensor: Nylon loop element, built in
- Switching differential: 3%RH
