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AirMix — Winter Condensation Guardian
Storing your motorhome or caravan outside over winter? Condensation and damp are your biggest enemy. Cold nights, temperature swings and stagnant air create the perfect conditions for mould, bad smells, rot and expensive interior damage — all while your vehicle is sitting unattended for months.
AirMix helps with that.
Leave it inside your habitation area over winter and it silently monitors temperature and humidity, calculates the dew point, and automatically runs opposing fans to circulate air before condensation can form. Completely battery backed — no mains, no vehicle power, no hookup needed. Just switch it on, close the door, and leave it to do its job all winter long.
No app. No Bluetooth. No setup. Switch it on and walk away.
What AirMix does:
Monitors temperature and humidity continuously using a precision SHT40 sensor
Calculates dew point — the real indicator of condensation risk, not just humidity alone
Pre-sniff pulse — runs fans briefly before each sample to flush stagnant air from the AirMix chimney and get a true reading
Automatically runs opposing fans when condensation risk is detected — one draws air in, one pushes air out
Adaptive monitoring — increases check frequency to every 5 minutes after a dew event until conditions are safe
Seasonal activation latch — LED shows 2 flashes after a dew event so you know it has been working during storage
Battery backed — runs completely independently from a quality RS Pro 18650 lithium-ion cell
USB-C charging — charge before you store, lasts the winter
LED guide printed on the enclosure — 1 flash = ready, 2 flashes = activated, 3 flashes = charge soon
Boot self-test fan dance — confirms both fans working at startup
Standard camera tripod mount — brass insert fitted, position it anywhere in your habitation area
Freestanding or tripod mounted — goes anywhere:
AirMix sits flat on any surface or mounts directly onto a standard camera tripod using the brass insert fitted to the base. Position it exactly where condensation is a problem — under a bed, on a worktop, in a wardrobe space. No drilling, no permanent installation, completely repositionable season to season.
Before you store for winter:
Charge AirMix fully via USB-C
Switch on and confirm 1 flash heartbeat — ready
Place in your habitation area
Close up your motorhome or caravan and leave
When you return in spring — 2 flashes on the LED tells you AirMix has been working. Your van is protected.
What's in the box:
AirMix unit in carbon fibre PLA enclosure
RS Pro 18650 lithium-ion cell installed — PCB protected, overcharge and over-discharge protected, UN and RoHS certified, original manufacturer's packaging included
Quick Start Guide
Technical:
Supply: RS Pro 18650 Li-ion cell, 3.7V 2600mAh, USB-C charging
Fans: dual opposing 5V PWM, variable speed
Sensor: SHT40 precision temperature and humidity
Dew point algorithm: August-Roche-Magnus
Activation threshold: RH ≥ 70% or dew point margin ≤ 2.5°C
Fan run: full power 60 seconds, cruise 70% for 5 minutes
Check interval: 1 hour normal, 5 minutes after dew event
LED: 1 flash = ready, 2 = activated, 3 = low battery, 6 = sensor fault
Tripod mount: standard ¼" camera fitting via brass insert
Handbuilt and tested in the UK by Digconn Systems
For full photo gallery including PCB detail and complete kit contents:
[Click here to view]
Storing your motorhome or caravan outside over winter? Condensation and damp are your biggest enemy. Cold nights, temperature swings and stagnant air create the perfect conditions for mould, bad smells, rot and expensive interior damage — all while your vehicle is sitting unattended for months.
AirMix helps with that.
Leave it inside your habitation area over winter and it silently monitors temperature and humidity, calculates the dew point, and automatically runs opposing fans to circulate air before condensation can form. Completely battery backed — no mains, no vehicle power, no hookup needed. Just switch it on, close the door, and leave it to do its job all winter long.
No app. No Bluetooth. No setup. Switch it on and walk away.
What AirMix does:
Monitors temperature and humidity continuously using a precision SHT40 sensor
Calculates dew point — the real indicator of condensation risk, not just humidity alone
Pre-sniff pulse — runs fans briefly before each sample to flush stagnant air from the AirMix chimney and get a true reading
Automatically runs opposing fans when condensation risk is detected — one draws air in, one pushes air out
Adaptive monitoring — increases check frequency to every 5 minutes after a dew event until conditions are safe
Seasonal activation latch — LED shows 2 flashes after a dew event so you know it has been working during storage
Battery backed — runs completely independently from a quality RS Pro 18650 lithium-ion cell
USB-C charging — charge before you store, lasts the winter
LED guide printed on the enclosure — 1 flash = ready, 2 flashes = activated, 3 flashes = charge soon
Boot self-test fan dance — confirms both fans working at startup
Standard camera tripod mount — brass insert fitted, position it anywhere in your habitation area
Freestanding or tripod mounted — goes anywhere:
AirMix sits flat on any surface or mounts directly onto a standard camera tripod using the brass insert fitted to the base. Position it exactly where condensation is a problem — under a bed, on a worktop, in a wardrobe space. No drilling, no permanent installation, completely repositionable season to season.
Before you store for winter:
Charge AirMix fully via USB-C
Switch on and confirm 1 flash heartbeat — ready
Place in your habitation area
Close up your motorhome or caravan and leave
When you return in spring — 2 flashes on the LED tells you AirMix has been working. Your van is protected.
What's in the box:
AirMix unit in carbon fibre PLA enclosure
RS Pro 18650 lithium-ion cell installed — PCB protected, overcharge and over-discharge protected, UN and RoHS certified, original manufacturer's packaging included
Quick Start Guide
Technical:
Supply: RS Pro 18650 Li-ion cell, 3.7V 2600mAh, USB-C charging
Fans: dual opposing 5V PWM, variable speed
Sensor: SHT40 precision temperature and humidity
Dew point algorithm: August-Roche-Magnus
Activation threshold: RH ≥ 70% or dew point margin ≤ 2.5°C
Fan run: full power 60 seconds, cruise 70% for 5 minutes
Check interval: 1 hour normal, 5 minutes after dew event
LED: 1 flash = ready, 2 = activated, 3 = low battery, 6 = sensor fault
Tripod mount: standard ¼" camera fitting via brass insert
Handbuilt and tested in the UK by Digconn Systems
For full photo gallery including PCB detail and complete kit contents:
[Click here to view]