ZS2S Reset & Teardown (FCC ID 2ANDL-ZS2S)
Factory reset and internal photos for Tuya Global ZS2S. Tuya / Smart Life smart plug.
January 15, 2026
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1 min read
Before you buy the Tuya Global ZS2S, check what's inside.
This device is a low-power embedded Zigbee module designed by Tuya, featuring an EFR32MG21A020F768 chipset. It's intended for integration into smart home devices like sensors, sockets, and appliances, leveraging the Zigbee protocol for low-power, reliable communication.
⚠️ NOTE: Ensure correct battery polarity and voltage range (2.0V - 3.8V) when powering the module.
Quick Specs
- Manufacturer: Tuya Global
- Model: ZS2S
- Protocol: Zigbee
- Chipset: Realtek/Beken
- Ecosystem: Tuya / Smart Life
- App: Smart Life
🔧 Geek Corner (Flashing Info)
- Chipset: EFR32MG21A020F768
- Flashable: ❌ No
- Info: The EFR32MG21A020F768 is a proprietary Zigbee SoC from Silicon Labs, not designed for flashing with custom firmware like Tasmota or ESPHome.
User Manual
Scanned pages from the official user manual:
External Photos
Photos of the device exterior:
Internal Photos
Teardown photos showing the PCB and components:
Verdict
The ZS2S is a Zigbee device from the Tuya / Smart Life ecosystem.
📄 Click to view full text manual (SEO)
Hangzhou Tuya Information Technology Co., Ltd. 1 V1.0.0
1 Product Overview
ZS2S is a low-power embedded Zigbee module that Tuya has developed. It consists of a
highly integrated Zigbee chip (EFR32MG21A020F768) and several peripheral circuits,
with an embedded Zigbee network protocol stack and robust library functions. ZS2S also
contains a 32-bit, 80 MHz, low-power Arm Cortex-M33 core, 768 KB flash memory, 64 KB
static random-access memory (SRAM), and extensive peripherals.
1.1 Features
Embedded low-power 32-bit microcontroller unit (MCU), which can also function as
an application processor
Clock rate: 80 MHz
Working voltage: 2.0 V to 3.8 V
Peripherals: five pulse width modulation (PWM) pins, one analog to digital converter
(ADC), and one universal asynchronous receiver/transmitter (UART)
Zigbee RF features
Channels 11 to 26 at 2.400 GHz to 2.483 GHz, 250 kbit/s air interface rate
TX power: +20 dBm; dynamic output power: > 35 dB
Runtime power consumption: 60 µ A/MHz; current in sleep mode: 5 µ A
Embedded Advanced Encryption Standard (AES) hardware encryption
Onboard PCB antenna
Working temperature: –20° C to +85° C
Tuya ZS2S Zigbee Module
Version: 1.0.0 Date: 2019-12-06 No.: 0000000001
Global Intelligent Platform
Product
Manual
Hangzhou Tuya Information Technology Co., Ltd. 2 V1.0.0
1.2 Application Scenarios
Intelligent building
Smart household and home appliances
Smart low-power sensors
Smart socket and light
Asset tracing
Industrial wireless control
Hangzhou Tuya Information Technology Co., Ltd. 3 V1.0.0
Change History
No. Date Change Description Version After Change
1 2019-12-06 This is the first release. 1.0.0
Hangzhou Tuya Information Technology Co., Ltd. 4 V1.0.0
Contents
1 Product Overview ........................................................................................................... 1
1.1 Features ............................................................................................................... 1
1.2 Application Scenarios ........................................................................................... 2
Change History ................................................................................................................. 3
2 Module Interfaces ........................................................................................................... 6
2.1 Dimensions and Footprint .................................................................................... 6
2.2 Interface Pin Definition ......................................................................................... 6
3 Electrical Parameters ..................................................................................................... 7
3.1 Absolute Electrical Parameters ............................................................................ 7
3.2 Working Conditions ...........................................................................................