Modbus outdoor sensor LKM459
LKM459 outdoor temperature/humidity probe Modbus RTU
The LKM459 is an outdoor temperature/humidity probe with Modbus connection. It measures the temperature and relative humidity for building and system automation.The probe is designed as a slave. RS485 is used as the electrical connection. TCP / IP with one or more devices is also possible via a gateway.
Interface parameters and slave address can be set via the mini USB interface.
The sensor is supplied fully calibrated. Minor corrections can be made on site using two controllers.
| Input: | Semiconductor sensor SHT 31 | integrated | ||
| Measuring range temperature: | -40...85°C | |||
| Measuring range humidity: | 0...100% | |||
| Supply voltage: | 10...35V | |||
| Output: | Modbus RTU | via gateway Modbus-TCP possible | ||
| Electrical protocol: | RS485 | |||
| Maximum cable length | 1200m | |||
| Transmission rate: | 19200/9600/4800/2400/1200 Baud |
über Software konfigurierbar | ||
| Parity: | even, odd, none | über Software konfigurierbar | ||
| Stop-bit: | 1 stop bit/2 stop bit | über Software konfigurierbar | ||
| Terminating resistor: | über Software konfigurierbar | |||
| Measurement error temperature: | typ.±0,2K | at 25°C | ||
| Measurement error Humidity: | typ. <2% | at 50% r.H. | ||
| Operating temperature range: | -40...85°C | |||
| Humidity: | <95% | |||
| Clamping type: | Screw terminals | |||
| Clamping range: | 0,13...1,5mm² | |||
| Dimensions: | 60x65x35mm | W x D x H | ||
| Sensor length: | 45mm | |||
| Diameter: | 14mm | |||
| Weight: | approx. 100g | |||
| Housing: | PA6 white | GK30 | ||
| Degree of protection: | IP64 | Screw connection PG9 | ||
| EMC: | EN 61326-1 EN 61326-2-3 |
Emission and noise immunity | ||
► Data sheet in PDF format 
► Operating instructions in PDF format
► Program for configuring the MODBUS parameters
► Operating instructions in PDF format
► Program for configuring the MODBUS parameters