Project Description

Internal température

Range: -25°C to +70°C
Resolution : 0,6°C


Range: -40°C to +125°C
Resolution : 0,015°C

Relative humidity

Range: 0 to 100 %RH
Resolution: 0,02 % RH


Indoor or outdoor
Historical monuments, buildings

Each sensor is autonomous; it doesn’t need another box nor a sending station


IoT, LoRa, LoRaWAN™
High capacity Li-ion cell
10,5cm x 10,5cm x 6cm
Operating temperature: -30°C to +85°C



Autonomous sensor for continuous measurement of temperature and relative humidity in a room or outdoors.
The measurement is extremely reliable and accurate and does not show any anticipated alteration even for exposures to very high levels of relative humidity (over 80%).

Each sensor is autonomous; it doesn’t need another box nor a sending station


Environmental monitoring in buildings or sensitive areas.

Sensor characteristics
Data recording
Local measurement interval  1 second (via Bluetooth application)
Data reporting interval 10 minutes (configurable)
Reported data Air temperature around the housing
Case temperature
Relative humidity of the air around the case
Battery voltage
Temperature probe
Measurement principle Digital
Measuring range -40 … +125°C
Resolution  ±0,015°C
Repeatability ±0,1°C
Long term drift < 0.05 °C/an
Relative humidity probe
Measurement principle Capacitive
Measuring range 0 … 100 %RH
Resolution 0,02 % RH
Repeatability ±0,2 % RH
Long term drift < 0.5 % RH/year (+23 °C, 30 … 70 % RH)
Temperature sensor inside the housing
Measuring principle NTC
Measuring range -55 … +125°C
Resolution 0,6°C (-5 … +50°C)

Long distance radio
Radio technology LoRaWAN
Security AES-128 data encryption
Supported features LoRa private or operated, OTAA
Radio range Up to 15 km
Transmitted power Up to 20 dBm (adaptive)
Receiver sensitivity -142 dBm
Frequency band 868 MHz (EU), 915MHz (US, AS, AU)
Antenna Internal or external to the housing
Local radio
Radio technology Bluetooth Low Energy
Radio range Up to 40m
Transmitted power Up to 4 dBm
Receiver sensitivity -96 dBm
Frequency band 2.4 GHz ISM
Antenna Internal to the box

Power supply
Battery type Lithium-Ion
Power consumption < 1mW
Battery life *
Measurement period Duration (up to)
10 minutes 5 years
20 minutes 10 years
30 minutes 15 years
1 hour 15 years

* Indicative duration, for use in the conditions of use

Operating temperature -30 … +85°C
Dimension 105 x 105 x 60 mm
Weight 280g
Internal memory 1024 measurements
Case Polycarbonate (weather, UV and impact resistant)
Decompressor against condensation
IP65, IK07
Fixing brackets

Order references
Order references
AthL-01 temperature and relative humidity sensor

Other options: contact us


Specifications and information in this document are subject to change without notice.

A3IP products are not warranted or licensed for use as a critical component for medical or other life-saving or life-sustaining applications, or other applications where failure could reasonably be expected to cause serious injury, death, or damage to any structure, work or building.

In addition, devices are indications and decision aids and cannot be used in alarm or critical applications.


+33 (0)2 40 94 78 41

Bâtiment Placel
Route de Vannes