7 Channel RS485 NTC Temperature Sensor Measurement MODBUS RTU Paperless Recorder NT18B07 Working current: 8-13MA (related to the number of external DS18B20) MODBUS RTU instruction support 03 06 function code By modifying the 485 address, up to 247 modules can be cascaded for use (if more than 16, please use R485 repeaters) Using DS18B20 temperature and humidity sensor, up to 8 DS18B20 temperature sensors can be connected at the same time The temperature can be measured from -55Celsius to +125Celsius (-67Fahrenheit to +257Fahrenheit). When the temperature is between -10Celsius and 85Celsius, it has an accuracy of +-0.5Celsius. Product name: 5 x 25mm waterproof probe length: 50CM Resistance value: 10K Resistance accuracy: +/-1% Resistance B value: 3950+/-1% Wire specification: 2651 26# Parallel wire temperature resistance 105Celsius Plug model: XH2.54-2P Probe: without mounting holes Power supply voltage: 6-24V Weight: 40 grams colour:Green Material:abs size:60 x 37 x 14MM Package Contents: 1 x Temperature Sensor Only the above package content, other are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.