Room Temperature and Relative Humidity Sensor - CHD301C (v1)

Room Temperature and Relative Humidity Sensor

Parameter

CHD301C(V3.0) is a temperature & humidity sensor with high reliability and superior stability.

With big LED display, people can examine local temperature and humidity. Via RS485/422 network communication, one PC can load 254 sensors to compose a surveillance system, in which, at most 254 x16=4064 pieces sensors can be managed. Featured with smart appearance, prompt reaction, high anti-interference ability, low power consumption, etc, it is most suitable for telecom base station, big warehouse, equipment or computer room and those places that have strict requirements in temperature & humidity and accurate real time monitor.

Main features are as follows:

l RS485 or RS422 Double Bus guarantee the safety of device communication;

l Big LED display, real time show local temperature and humidity;

l With button to control backlight, which can automatically turn off after 10sec delay time;

l Large temperature range, sensor can be separated with control part;

l Measurement range can be set. It can set congealing dew resistance function and real time alarm when exceeding.

l Strong anti-interference, low power consumption and 3 grade thunderproof protection;

l Featured with exacurate and stable measuring, high precision and good value for money, etc.

• Dimension: L90mm×W85mm×H19mm
• Weight: 100g
• Color: light blue, milk white, sub-black, etc.
• Display: LCD liquid display.
• Power supply: DC12~24V; backlight current ≤20mA, with current limit, thunderproof and reverse polarity protection, conform with anti-explosion requirements;
• Communication interface: standard RS485 double bus or RS422 interface, compatible with EIA/TIA standard, transmission rate 2400~38400 BPS optional, default value 9600; apply YDN023-1996 and MODBUS protocol;
• Transmission distance: max. 1200m;
• Node capacity: max. 30; if there are many devices, use CHD485HUB/CHD422HUB to extend;
• Humidity Pricision: ±3.0 %RH:
• Temperature Pricision: ±0.4 °C:
• Humidity Range: 5%~95%;
• Temperature Range: -30°C ~ 70°C
• Operation environment: operation temperature -30°C ~ 70°C; relative humidity 5%~95%;
• Storage environment: storage temperature -30°C ~ 85°C; relative humidity 5%~95%;

Size: 90x85x19mm , Working power supply: DC7V--20V, current: <2.5mA

Able to monitor environment and test its temperature and humidity in spots by system software

Able to automatically detect and analyze temperature&humidity and then give signal to management center timely

Rang of testing humidity: 10%-98%RH, precision:±3%RH

Rang of testing temperature: -10-100, precision:±0.4

Dual-route RS485 communication, with background light button

Installed with SCM(single chip) so that it can report mistakes automatically and will not lose data when power is off.

Unique design of connection lines for input and output ensures convenience in installation.

Wide application, applicable to test the temperature&humidity of all kinds of pipelines or special facilities.

Payment Terms :T/T, Western Union ,HSBC,Standard Chartered,Domestic Bank