NSnappy® Hygi ATP luminometer

ATP luminometer

NSnappy® Hygi analyzes the level of contamination on surfaces by using ATP luminometry method.

You get an analyzed result in seconds, and the data goes to NSnappy® cloud service without any manual recording. The device uses LoRAWAN connection. Hygi is compatible with Hygiena UltraSnap swabs.

Regular maintenance and battery replacement service are included.

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NSnappy Hygi LWEU User Manual


  • Storage conditions: +5…+40 °C, relative humidity 5-95%, non-condensing
  • Operating conditions: +20…+30 °C, relative humidity 5-95%, non-condensing
  • Protection class: IP20
  • Enclosure material: PC+ABS plastic


  • Dimensions: 198 x 47 x 27 mm
  • Weight: approx. 190 g, not including swab

Measuring method

  • Description: ATP luminometry based on a photodiode
  • Measuring time: approx. 15 seconds
  • Measuring unit: RLU (Relative Light Unit, where 1 RLU is roughly equivalent to 1 fmol ATP)
  • Measuring range: 0…99999 RLU
  • Display resolution: 1 RLU
  • Measuring noise: ±5 RLU
  • Measuring accuracy: ±20% ± 5 RLU

Sampling method

  • Single-use swab: Hygiena® UltraSnap® ATP surface hygiene sampling swab

User interface

  • Display: Two-digit 7-segment-LED display
  • Power button: Tactile silicone rubber switch

Radio connection

  • Description: LoRaWAN standard, EU 868 MHz frequency range
  • Transmitter module: Murata ABZ-093 LoRaWAN modem
  • Antenna: Internal
  • Compatibility: Nokeval NSnappy Hubs and Cloud Service
  • Frequency: 863-870 MHz (LoRaWAN 1.0.2 EU band)
  • Power: Max +14 dBm E.R.P.
  • Range: Depends on environment, indoors: in good conditions up to hundreds of meters, outdoors: line-of-sight up to 10 km

Power supply

  • Type: 3.6 V Lithium thionyl chloride battery pack (1 x AA size)
  • Battery life: 3 years in normal use (approx. 100 operating hours)