| Physical Characteristics | 
| Dimensions | 
86 mm x 86 mm x 14 mm  | 
| Installation | 
Desktop, 3M Tape Mounting, 86 Box Mounting | 
| Environmental Characteristics | 
| Operating Temperature | 
-10ēC to +50ēC | 
| Relative Humidity | 
<=90% (non-condensing) | 
| Ingress Protection | 
IP30 | 
| Power | 
| Battery | 
2 × 590 mAh CR2450 Lithium Coin Cell Batteries | 
| Battery Life | 
Over 3 years  | 
| Interface | 
| Display | 
WS136: PVC Sticker  WS156: 2.9 inch Black & White E-Ink Screen, 128×296 Pixels | 
| Scene Button | 
6 Buttons | 
| Other Buttons | 
1 x Internal Reset, 1 x LED Indicator | 
| Wireless Characteristics | 
| Technology | 
LoRaWAN, LoRa D2D | 
| Frequency | 
CN470/IN865/RU864/EU868/US915/AU915/KR920/AS923 | 
| Tx Power | 
16 dBm (868) / 22 dBm (915) / 19 dBm (470)
 | 
| Sensitivity | 
-137dBm @300bps | 
| Mode | 
OTAA/ABP Class A | 
| Configuration Interface | 
| Configuration | 
NFC |