Dimensions

• 6.3 x 6.3 x 2.25 cm (2.48 x 2.48 x .89 in)

Weight

• 75.6 g

Operating Temperature

• -40° to 60°C

Battery

• 3+ year battery life, user-replaceable AA battery

Probe (EM22)

• Stainless steel (5.0 x .33 cm), 28AWG hermetically-sealed PFA jacket (sterilizable). Total probe and wire length = 120 cm

Ingress Protection

• IP67 rated waterproof and dustproof per IEC standard 60529; designed for splash, spray, and dust (body no intended for prolonged submersion)

Data Logging Capacity

• When vehicle is on, typical power draw is 1W (3 months)

Data Upload

• Automatic (zero touch) wireless data upload via Samsara gateway

Included Sensors

• Temperature (Built-In):
  Range: -40° to 60° C (limited by operating range)
  Accuracy: -10° to 60° C, Typical: ±0.3°, C Max: ±0.4° C -40° to -10° C, Typical: ±0.7°, C Max: ±0.9° C

Temperature (External Probe – EM22)

• Range: -55° to 100° C
• Accuracy: -55° to 100° C Typical: ±1.0° C
• Time Constant: 5.0s (oil bath)

Humidity

• Range: 0-95% RH
• Accuracy: 0 to 80% RH Typical: ±2.0% Max: ±3.0% 80 to 90% RH Typical: ±2.5% Max: ±3.8% 90 to 95% RH Typical: ±3.0% Max: ±4.5%
• Time Constant: 18s (1 m/s airflow)

Real-Time

• Samples every 4 seconds, transmits new data to the cloud in real-time

Auto-Discovery

• Automatically detects and connects to any sensor associated with same account

Wireless Range

• 100 ft / 30 m (line of site). Actual range depends on RF interference, building materials, and physical obstacles

Radio Frequency

• 2.4 Ghz, proprietary low-power sensor data protocol

Visibility and Management

• Real-time visibility, SMS and email alerts, and historical reports via Samsara Cloud dashboard for web and mobile devices

All-Inclusive License

• Requires EM license, which includes maintenance and support, dashboard access, sensor data storage, and feature updates