WiFi and Mobile Network (SIM), it supports external RS485 probe with audio plug, we will provide one global SIM card in the product package.

Size and Weight: 5.98 x 3.54 x 2.16, 475 ± 3g

Screen: 4 LCD with backlight

Sensors:
temperature: -4℉ to 140℉(-20℃ to 60℃)

accuracy: ±0.3℃

humidity: 10% to 90%

accuracy: ±3% RH

ambient light: 0.01 to 83K lux

accuracy: ±2%

Power Supply: built-in lithium battery can be charged by Type-C USB, DC (5V-12V) charger

Operation System: iOS 11+, Android 8.1+, or Windows 7+, or macOS v10.8+

Internal Memory: 300,000 sensing records

WiFi Information:
supports 20MHz or -Auto- setting supports OPEN, WEP, or WPA/WPA2 types, WPA2-Enterprise (802.1x / RADIUS authentication) network is not supported
requires 2.4GHz (802.11 b / g / n), channels 1-13 network (5GHz WiFi is NOT supported)

Mobile Network:
LTE-FDD: B1 / B3 / B5 / B8
LTE-TDD: B34 / B38 / B39 / B40 / B41
WCDMA: B1 / B5 / B8
GSM: 900 / 1800MHz