The company's products use NB-IoT/Cat-1/WiFi and other wireless transmission technologies can also be changed to Ethernet wired transmission.

All models are externally equipped with modules or sensors
4/8 Port relay control module
AC110/220V digital current ratiotor
Digital Meter (RS485 Model)
TECO/Shilin motor inverter
More than 500 kinds of 4-20mA output of various types of sensing equipment (special gas, water quality, water level...) and other testing equipment)
All kinds of RS485 interface equipment customized monitoring
Can be used with solar cell systems.

It can be used with digital meters and current detectors to detect power consumption and fault alarms of equipment.

It can be used with the frequency converter to connect the detection value such as dissolved oxygen meter or temperature, and adjust the speed and operation time by yourself.

Intelligent wireless Otrol
01
Built-in measurement:
RS485 port
4 groups of 4-20mA inputs
12 sets of I/O dry contacts (digital)
temperature
pH
RP
Solar charge detection

DVT 智能無線通Otrol

Intelligent wireless Otrol Basic
02
Built-in measurement:
RS485 port
1 groups of 4-20mA inputs
2 sets of I/O dry contacts (digital)

Solar Wireless Intelligent Aquaculture Monitoring System
03
Built-in measurement: Temperature, pH, TDS, EC, Salinity, ORP, DO.
Four sets of manual/automatic power switches (set and installed by users according to the needs).
Intelligent control four sets aquaculture aerators or automatic feeding machines.
External connection port: 4-20mA, RS-485.
This product adopts NB-IoT/Cat-M1 wireless transmission technology.
LoRa, WIFI, and Zigbee modules are to be customised.
Attached with solar battery system.
Compatible with current transformer to detect power consumption and fault alarm.
Compatible with the frequency converter to link the dissolved oxygen meter/ thermometer to detect numeric values to adjust the speed and action time automatically.