Small Size Long Range UHF RFID Reader Senior Module St-M918

Basic Info

Model NO.	M918 RFID Module
Power Supply	DC 9V-24V
Communication	RS232, Wiegand26,Relay
Frequency	865~868MHz, 902~928MHz (EU&Us )
RF Power	30 dBm Adjustable
Transport Package	Size: 30*23*13cm(Us)
Specification	Size: 76.5*51*10.1mm
Trademark	Focus RFID
Origin	Shenzhen
HS Code	8471900090
Production Capacity	10, 000, 000 PCS/Year

Product Description

UHF SENIOR Module
(Eight Port)

General description

ST-918 is a high performance UHF RFID Module. It is designed based on Senior Imported Chip. Based on proprietary efficient digital signal processing algorithm, it supports fast tag read/write operation with high identification rate. It can be widely applied in many RFID application systems such as logistics, access control, and industrial production process control system.

Technical Parameter

Model	ST-M918
Chip solution	High performance Senior Imported Chip (compatible with Impinj R2000)
Frequency	865~868MHz (EU),902~928MHz(US)
Protocol	ISO18000-6C (EPC GEN2)
RF power	30dbm (adjuatable)
Receive Sensitivity	≤-87dBm
Inventory Speed	300pcs/s
Work mode	Answer mode,real-time inventory mode
Reading distance	0~15 meter (depends on antenna & tag)
Power supply	3.3~5V DC
Interface	RS232 (TTL 3.3V level )
Antenna port	8 SMA female connector
GPIO	2 input & 2 output
Firmware upgrade	Support
Size	76.5*51*10.1mm
Weight	42g
Working temperature	-20~+55ºC
Storage temperature	-20~+85ºC

No.	Symbol	Comment
1	GND	Ground
2	GND
3	VCC	Power Supply
4	VCC
5	GPO1	General output (3.3V TTL level)
6	GPO1
7	GPI1	General input (3.3V TTL level)
8	BUZZER	Buzzer driver output, high level effective. Current sourcing over 50mA
9	RXD	Serial data input
10	TXD	Serial data output
11	USB-DM	For test only
12	USB-DP
13	GPI2	General input (3.3V TTL level)
14	EN	Enable. High level effective with internal 10kOhm resistor pulled up to VCC
15	RS485_CTRL	RS-485 direction control