5
1.2. Device specification
Specification
value
Remark
Input Voltage
USB power supply DC 5V / 1A
Power Consumption
10W Under
Except Sensor
Operation temperature
-30℃~ 75℃
Processor
ARM Cortex-M3 / M4
BLE / Wifi
Clock
48Mhz / 80Mhz
BLE / Wifi
RAM
28kByte / 256kByte
BLE / Wifi
ROM
128Kbyte / 4Mbyte
BLE / Wifi
Bluetooth
BLE only 4.0
WiFi
802.11 b/g/n (20Mhz only)
Security
WPA
WiFi Max Throughput
13Mbps
Application level
WiFi RX Sensitivity
–95.7 dBm / –74.0 dBm
1 DSSS / 54 OFDM
Antenna gain
Chip antenna 1.9dBi
1.3 Sensor input specification
1.4 Device order number- example
- You should check the order number when ordering the product.
> WFS-205DS-KKKK -> thermocouple (total 4ch)
> WFS-205DS-VXXX -> analog volt input (total 1ch)
> WFS-205DS-VCDX -> analog volt,currnet input, digital input (total 3ch)
Input
Type
Measurement
Range
Remark
Order
Number
Analog
Thermocouple
K-type
0~1000℃
+-2℃ Accuracy Range 0~250℃
(within Reference Junction 25~100℃)
“K”
Volt
0~10 V
16it Resolution
“V”
Current
0~20 mA
16it Resolution
“C”
Resistance
50~10kΩ
Not support 3-wire RTD, But if you want to use it,
short the calibration line and use it.
“O”
Digital
DC
12~24V
3kv isolation
NPN, PNP, Dry contact
“D”
Unused
“X”
