Wireless room sensor with humidity

The wireless room sensor is a battery powered device, which combines room space temperature, light level, relative humidity and battery voltage status. The sensor can feed the data back to your NiagaraAX platform or our wireless BEMS.  



  • Relative humidity sensor
  • Space temperature sensor
  • High performance wireless narrow band operation
  • Up to 2Km line-of-sight range
  • Multi-hop wireless protocol
  • License-free use
  • 69 selectable RF channels
  • Long battery life
  • Tamper proof enclosure


Temperature & humidity

Operating temperature range -10 to +60°C

Operating humidity 75% RH (Non condensing)

Storage temperature -20 to +85°C

Storage humidity <90% RH (non-condensing)



Supply voltage 9VDC

Supply source Lithium PP3 (U9VL-J, U9VL-X, U9VL-FP, U9VL-FP & ER9V)

Current consumption average ~6uA

Current consumption peak 26mA

Battery life expectancy up to 3 years, dependent on settings and environment


Sensor data

Temp sensor resolution 0.1°C

Relative humidity resolution 1%

RF data

RF frequency 433.05 – 434.79MHz

RF output 8dBm max

RF sensitivity -115dBm

RF bandwidth 25kHz (Narrow band)

RF channels 69

RF antenna Internal  


Weight & dimensions

Weight N/A

Width 160mm

Height 90mm

Depth 58mm



EN 301489-1: 2008

EN 55022: 2006

EN 61000-4-3: 2006

EN 61000-4-2: 2001 


EN 60950: Information technology equipment

EN 60730: Automatic electrical controls

EN 50366: Domestic equipment


EU R&TTE directive for 25kHz

EN 300 220: EMC standard for short range devices

EN 301 489: EMC standard for radio equipment and services




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Becoming a partner and using our wireless I/O couldn’t be easier. To get started, just request a call back from our partner manager.

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