Environmental Monitor.
The sensor layer of cold chain compliance — placed, configured, and validated by Vidmatics.
Audit-ready temperature records from the same platform that runs your fleet.
The Environmental Monitor (EM31) is Samsara's wireless sensor for cold chain and environmental compliance. It measures ambient temperature with factory-calibrated accuracy, supports an optional stainless-steel probe (ACC-EM-P1) for product-level or extended-range measurement, and reports through Samsara gateways so readings land in the same dashboard as the vehicle and trailer. Vidmatics places sensors where auditors expect them and configures the alerts before your first monitored load.
Feature highlights.
±0.3°C typical accuracy across the working range.
Optional ACC-EM-P1 probe extends range to -40°C to +85°C.
Readings flow through Samsara gateways automatically.
Excursion alerts tuned to your commodities and lanes.
Where fleets put it to work.
Technical specs.
- Model
- EM31
- Ambient range
- -40°C to 60°C
- Accuracy
- ±0.3°C typical (-10°C to 60°C), factory-calibrated
- Probe accessory
- ACC-EM-P1, stainless steel, -40°C to +85°C
Installed, trained, and supported by Vidmatics.
Vidmatics technicians install the hardware. Vidmatics trainers teach your team. Vidmatics support stays on the line. The full deployment is the difference between buying technology and actually using it.
Related products.
Continuous temperature visibility for cold chain operations from yard to delivery.
Sensors that show what's inside the trailer — load state, door status, and movement.
Purpose-built trailer tracker with plug-and-play ABS installation and precise tracking in low-coverage areas.
Ready to deploy Environmental Monitor?
Get pricing, deployment timelines, and a configuration tailored to your operation.