Overview

Product Overview

Bituo Technik is a forward-looking provider of electrical monitoring technologies, with a strong R&D focus on electrical safety and energy efficiency.

We offer two major product categories:

	Electrical Monitoring Devices	Electrical Measurement Components
Description	Smart devices designed for fast, seamless integration into new or existing panels and boxes, ensuring safe, efficient, and connected operation.	Reliable electronic components and systems for residual current detection and power monitoring & metering, tailored for renewable energy and industrial applications.
Products	SPM Series - Miniature Energy Meters SDM Series - Compact DIN-Rail Energy Meters SRS Series - Smart Relay Switches	BRCS Series - AC/DC Residual Current Sensors for EV Charging BSCT Series - Split-Core Current Transformers

---

Electrical Monitoring Devices

SPM Series

SPM Series — Miniature Energy Meters

The world's smallest real-time energy monitors with integrated communication, designed to install above or below circuit breakers with no extra DIN rail space required.

Wireless Communication Variants

Model	Applicaton	Voltage	Max Current	Connectivity
SPM01 FLEX	Single-phase	220–240 VAC	63 A	Wi-Fi / Zigbee / BLE
SPM02 FLEX	Three-phase	220–240 / 380–415 VAC	63 A	Wi-Fi / Zigbee / BLE
SPM01 MCBM	Single-phase	220–240 VAC	63 A	Wi-Fi / Zigbee / BLE
SPM02 MCBM	Three-phase	220–240 / 380–415 VAC	63 A	Wi-Fi / Zigbee / BLE

Wired Communication Variants

Model	Applicaton	Voltage	Max Current	Connectivity
SPM01R FLEX	Single-phase	220–240 VAC	63 A	Modbus RTU
SPM02R FLEX	Three-phase	220–240 / 380–415 VAC	63 A	Modbus RTU
SPM01R MCBM	Single-phase	220–240 VAC	63 A	Modbus RTU
SPM02R MCBM	Three-phase	220–240 / 380–415 VAC	63 A	Modbus RTU

SDM Series

SDM Series — Compact DIN-Rail Energy Meters

Smart energy meters with split-core clamp CTs. Engineered to meet IEC and UL standards for global markets.

Model	Application	Voltage	Max Current	Connectivity
SDM01 Combo	Three-phase	220–240 (L-N) / 380–415 (L-L) VAC	120 A (Ø16 CT) 200 A (Ø20 CT) 300 A (Ø24 CT) 400 A (Ø36 CT)	Wireless: Wi-Fi / Zigbee / BLE Wired: RS485
SDM02 SP	Split-phase	110-240 (L-N) / 208-240 (L1-L2) VAC	120 A (Ø16 CT) 200 A (Ø20 CT) 300 A (Ø24 CT)	Wi-Fi / Zigbee / BLE
SDM01G2 Combo	Three-phase	220–240 (L-N) / 380–415 (L-L) VAC	50 A (Ø10 CT) 120 A (Ø16 CT) 200 A (Ø20 CT) 300 A (Ø24 CT) 400 A (Ø36 CT)	Wireless: Wi-Fi / Zigbee / BLE Wired: RS485
SDM01G2X	Three-phase	220–240 (L-N) / 380–415 (L-L) VAC	50 A (Ø10 CT) 120 A (Ø16 CT) 200 A (Ø20 CT) 300 A (Ø24 CT) 400 A (Ø36 CT)	Wi-Fi / Zigbee / BLE / LoRaWAN (External Antenna)

SRS Series

SRS Series — Smart Relay Switches

Compact smart relays with integrated power monitoring, designed for flush-mounted wall boxes and ceiling installations.

Model	Channels	Max Current	Metering	Communication
SRS01-1PM	1 × relay	16 A (Resistive)	V / I / P / E	Wi-Fi / Zigbee / BLE
SRS01-2PM	2 × relay (independent)	10 A per channel, max 16 A total (Resistive)	V / I / P / E	Wi-Fi / Zigbee / BLE

---

Electrical Measurement Components

BRCS Series

BRCS Series — AC/DC Residual Current Sensors

Sensors for built-in RDC/RDC-DD at AC EV charging equipment. World's first TÜV-certified sensor for RDC-DD (2019), and 6+ year proven track records.

Model	Mounting	Supply	Residual Current Type
BRCS01C	Cable / PCB / Enclosure	5 V / 12 V	Type-A 30mA (IEC60947-2-M / IEC61008-1) ; DC 6 mA(IEC 62955); AC 20mA (UL2231-2:CCID20)
BRCS03C	PCB (copper jumper)	5 V	Type-A 30mA (IEC60947-2-M / IEC61008-1) ; DC 6 mA(IEC 62955); AC 20mA (UL2231-2:CCID20)
BRCS03X	PCB (Horizontal Through-hole)	5 V	Type-A 30mA (IEC60947-2-M / IEC61008-1) ; DC 6 mA(IEC 62955); AC 20mA (UL2231-2:CCID20)
BRCS01V	PCB (Vertical Through-hole)	5 V	Type-A 30mA (IEC60947-2-M / IEC61008-1) ; DC 6 mA(IEC 62955); AC 20mA (UL2231-2:CCID20)

💡 IEC and UL versions share the same hardware but differ in pin assignments and output logic. Always select the correct version for your target market.

BSCT Series

BSCT Series — Split-Core Current Transformers

High-accuracy split-core CTs with 100% factory accuracy testing. Originally developed for the SDM series, available as standalone components.

Model	Aperture	Rated Current	Shell Color
BSCT-10A / 10C	10 mm	50A/16.6mA	White / Black
BSCT-16B / 16C	16 mm	120A/40mA	White / Black
BSCT-20A	20 mm	200A/66.6mA	White
BSCT-24C	24 mm	300A/50mA	Black
BSCT-36C	36 mm	400A/66.6mA	Black

Custom specifications available upon request.