Specifications for Conserv's SCS-3-4 Sensor
Conserv's SCS-3-4 Smart Collection Sensor is designed specifically for collection care use cases. It measures visible light levels, temperature, humidity, and movement.
⚠️ Note: This article is for the SCS-3-4 sensor. The sensor's version can be identified by the label on the back of your sensor. ⚠️
Important (as of February 2025)
The SCS-3-4 has now been discontinued and will be phased out as subscriptions renew.
Safe handling instructions
As Conserv manages your subscription and your data is automatically transmitted to the Conserv platform, you should not need to interact with your sensor after initial setup.
In rare instances, you may need to replace the batteries in the device. In these instances, only use batteries provided by Conserv. Make sure to follow the symbols marked on the enclosure to properly insert the batteries in the correct orientation.
After three years, Conserv will replace your sensors as part of your subscription. We will ask you to return your old sensors to us so we can refurbish them or dispose of them safely.
Physical Specifications
| Size | 3" W x 3" L x 1" H |
| Mounting | Mounts with magnets or command strips |
| Notes | Vertical mounting is recommended to minimize dust accumulation on sensing elements |
Visible Light Specifications
For light measurement, we calibrate against an ELSEC 765 Environmental Meter.
| Resolution | < 100 mlx |
| Maximum Dynamic Range | 64 klx |
UV Specifications
Primary Temperature Sensor Specifications
For temperature and humidity, we use the Sensirion SHT-45 sensor.
| Temperature Range | Operating: –40°C to 85°C Functional: –40°C to 125°C |
| Temperature Accuracy | ±0.1°C (typical), ±0.3°C (maximum) |
| Repeatability | ±0.04°C |
| Response Time | 2 sec |
Relative Humidity Specifications
| RH Range | 0% to 100% (non-condensing) |
| RH Accuracy | ±1% (typical), ±2% (maximum) |
| RH Repeatability | ±0.08% |
| Hysteresis | ±0.8% |
| Response Time | 4 sec |
| Long Term Drift | less than ±0.2% / Year |
Warning: While the sensor may be both operational and functional at very low (freezing) temperatures, please be aware that this sensor is not waterproof and it has not been designed to withstand condensation. Condensation caused by taking the sensor in and out of freezing conditions may damage the internal components. If you wish to use a sensor designed for freezer conditions, we suggest you look into our cold sensor instead.
Movement Specifications
| Measurement Type | Threshold based alerting |
| Axis | 3 axis (X,Y,Z) |
| Bias Calibration | Automatic on startup |
Network Specifications
| Network Type | LoRaWAN 1.0.4 |
| Encryption | AES128 |
| Maximum Output Power | 28mW |
| Operating Frequency | US ISM 915mhz |
| Operating voltage | 7.2v |
Battery Specifications
| Battery type |
LiSOC2 Lithium, AA size |
| Typical Battery Life |
36-48 months |
| Battery voltage | 7.2v |
| Average sleep power consumption | 10uA |
| Configuration mode power consumption | 8mA |
| Average transmission power consumption | 2.5mA |