Vutlan VT490 — CAN Humidity and Temperature Sensor
High-accuracy temperature and humidity sensor that daisy-chains over CAN bus. Connected in series on a single cable for multi-point measurement at rack fronts/backs, hot/cold aisles or around a room. Each parameter is a separate element in the web interface; dew point is calculated in the interface.

Specifications
- Tip / Type
- CAN dijital sıcaklık + nem sensörü
- Üretici / Manufacturer
- Vutlan s.r.o. (Bratislava, Slovakya)
- Sıcaklık doğruluğu / Temperature accuracy
- ±0.4 °C (−10…+85 °C), çözünürlük 0.1 °C
- Nem doğruluğu / RH accuracy
- ±3% RH (0–80% RH)
- Arayüz / Interface
- CANopen, 2 × RJ11 6P4C, daisy chain
- Maks. mesafe / Max distance
- 225 m (ana üniteden)
- Besleme / Power
- 12V DC, 1 W
- Çalışma / Operating
- −40…+100 °C, 0–95% RH
- Boyutlar / Dimensions
- 68 × 47 × 26 mm
- Montaj / Mounting
- Masaüstü, duvar
- GTIN
- 8588009886297
- Garanti / Warranty
- 90 gün (Vutlan ürün sayfası); AB üretimi
Key features
- Temperature accuracy ±0.4 °C (−10…+85 °C), resolution 0.1 °C.
- Relative humidity accuracy ±3% RH (0–80% RH).
- CAN (CANopen) digital sensor — 2 × RJ11 6P4C ports, daisy chain.
- Max 225 m from the master; 24 devices recommended per CAN line, an extra CAN-12V-1A supply per 12 devices.
- Temperature and humidity are separate elements — individual thresholds and notifications; dew point calculated.
- Operating −40…+100 °C, 0–95% RH; 12V DC, 1 W.
- TR switch (last device on the line) and RUN/ERR LEDs; desktop or wall mounting.
- 68 × 47 × 26 mm; compatible masters: VT225t, VT335G, VT336t, VT825G, VT855G, VT604G/VT608G, VT-PDU, LR800.
- Promark: hot/cold aisle measurement-point plan and CAN chain design.
Typical applications
Rack front (cold) and rear (hot) measurement — many racks on one CAN chain.
Hot/cold aisle balance and cooling-efficiency tracking.
Server room, UPS and battery room climate monitoring.
Humidity-sensitive spaces such as warehouses, archives and greenhouses.
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DetailsHigh-accuracy temperature and humidity sensor that daisy-chains over CAN bus. Connected in series on a single cable for multi-point measurement at rack fronts/backs, hot/cold aisles or around a room. Each parameter is a separate element in the web interface; dew point is calculated in the interface.