| Sonoff Temperature Sensor SNZB-02 (SNZB-02) | ||
|---|---|---|
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Security Grade
Calculator v1
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Sonoff Temperature and Humidity Sensor SNZB-02
Brand: Sonoff (Parent: ITEAD Studio) Category: Zigbee Temperature & Humidity Sensor • Model / Gen: 1st Generation SNZB-02 Release Date: 2021-04-08 • Status: In sale Classification Date: 2026-10-25 • Official Website | |
| Criterion | Value | Proof | Comment |
|---|---|---|---|
| Known hardware tampering | None | 🔗 Proof | |
| Known vulnerabilities | Rare | 🔗 Proof | |
| Prior attacks | None | 🔗 Proof | |
| Updatability | Rare | 🔗 Proof | |
| Category Score | Score: 2 / 3 | ||
| Criterion | Value | Proof | Comment |
|---|---|---|---|
| Authentication with other systems | Partial | 🔗 Proof | |
| Communications | Encrypted with up-to-date encryption | 🔗 Proof | |
| Storage | No encryption | 🔗 Proof | |
| Category Score | Score: 2 / 3 | ||
| Criterion | Value | Proof | Comment |
|---|---|---|---|
| Account management | Basic | 🔗 Proof | |
| Authentication | Basic | 🔗 Proof | |
| Brute-force protection | Absent | 🔗 Proof | |
| Event logging | Absent | 🔗 Proof | |
| Passwords | Default/Common/Easy to guess | 🔗 Proof | |
| Category Score | Score: 3 / 3 | ||
| Property | Details |
|---|---|
| Operating System & App | Zigbee RTOS (Companion App: eWeLink) |
| Hardware (CPU / GPU) | CPU: CC2530 • GPU: None |
| Memory & Storage | Memory: 32 KB RAM, 256 KB Flash • Storage: Internal Flash |
| Power, Battery & Charging | Battery: CR2450 3V • Power: 3V DC battery powered • Charging: Not rechargeable |
| Display & Camera | Display: None • Camera: None |
| Sound & Connectivity | Sound: None • Connectivity: Zigbee 3.0 (IEEE 802.15.4) |
| Physical (Dimensions & Mass) | Dimensions: 43 × 43 × 14 mm • Mass: 22 g |
This is a low-power Zigbee temperature and humidity sensor from Sonoff, powered by CR2450 battery. It communicates over Zigbee AES-128 encryption. It has limited firmware update support.
