4. Product Specifications for WSNBM-AQUA MEASUREMENT Standard Inputs 02 x Pulses, 1 x RS485 Modbus RTU Master Optional Input 1 or 2 Pressure Sensors Digital Inputs 2-Digital channel inputs with dry-contact or voltage input (max 3.3VDC) DI Functions: Logic Detecting or Pulse Counting Logic Detecting: 2 channels, recommended minimum interval time between 02 statuses is 5 seconds. Pulse Counting: 2 channels, max frequency 100Hz, minimum Pulse width (low or high) is 200μS, counter is uint32 type. RS485 Input port 1 x RS485 master port Protocol: Modbus RTU Pressure Sensor Advanced Piezo technology Measurement range: Select 0-10 barg, 0-16 barg, 0-20 barg Over pressure protection: 1.5 x span Accuracy & Stability: 0.25% or 0.5% of span, < 0.2% span/ year Wetted parts: 304SS/316SS Measuring Fluids: Any fluid which is workable with materials 304SS/316SS Working temperature: 20∼80℃ Compensation temperature: -10∼50℃ Process connection: Standard G 1/4 or Others (consult factory) COMMUNICATION Connectivity LTE Cat NB1 for B1, B2, B3, B4, B5, B8, B9, B10, B12, B13, B17, B18, B19, B20, B25, B26, B27, B28, B66 LTE Cat M1 LTE HD-FDD B1/B2/B3/B4/B5/B8/B12/B13/B18/B19/B20/B25/B26/B27/B28/B66 LTE Cat NB1/NB2 LTE HD-FDD B1/B2/B3/B4/B5/B8/B12/B13/B17/B18/B19/B20/B25/B28/B66 RF Power Class 3, 23 dBm ±2.7 dB Antenna Internal Antenna 2.0 dbi Battery 01 or 02 x D size 3.6VDC LiSOCl₂ Battery type, battery not included Working temperature -40∼85℃ (with SAFT LS33600 batteries) Dimensions/ Netweight H170 x W192 x D97, 190g Housing Anodized Aluminum + Engineering plastic, IP68.