8.2 K-HOAT KH-706 Series Humidity and Temperature Transmitter





Khoat Make KH-706 Temperature and Humidity Transmitter



KH706 is digital temperature and humidity sensor, widely used for air temperature and humidity monitoring in Medicines, food, meteorological environment, libraries, warehouse or storehouse, equipment room etc and also for industrial automation process monitoring and researching area.



USB port to Wireless Communication


: USB port is for power supply and also transmitting data, directly plug to USB port of PC or notebook, plug and play, supporting standard MODBUS-RTU protocol

RS485 port to Wireless Communication


: Standard RS485communication port, communication with intelligent equipment and transfer to wireless communication, supporting standard MODBUS-RTU protocol (External 5VDC power supply adaptor is needed)

Wireless transmission type


: Wireless communication networks can be achieved through current 220V electricity network, supporting standard MODBUS-RTU protocol. Transmitting distance can be up to 1500m without obstacle in open area, with 422MHZ carrier frequency, without application for ISM frequency band, supporting multi-signals, without interferes with multi-modules transmission

Built-in Protection



: Built-in anti-lightning and anti- electrostatic protection; automatic identify the data direction control,; transmitter and receiver in a unit, semiduplex, automatically finish data transmitting and receiving

Transmission Distance

: Transmission distance can be up to 1500meters without obstacle; strong penetration (about 6-10 floors)

Various Communication type

: Point to point communication, point to multi-point communication, multi-point to point communication

Transparent Transmission

: Transparent data transmission, can transmit long data frames


: FCC, ETSI standard Specification


Temperature resolution

: 0.01 °C

Response time

: 8 second

Measured range

: T:-40 to 120°C, H: 0-100%


: T: ±0.5 °C , H: ±4.5%

Power supply


Power consumption

: <1.0W

Humidity resolution

: 0.1RH

Temperature sample time

: 2 second

Communication baudrate

: 9600bps default

Working temperature

: -25 to 75 °C

Storage temperature

: 40 to 85 °C

Storage humidity

: 5-90% (No dew)