Description

Key Features

• Temperature and humidity measurements for indoor use
• Alarm thresholds
• Sampling and transmission rates are configurable
• Battery powered
• Long life battery
• Internal antenna

Product Specifications

General characteristics

• Chip Ember EM250
• Compatible IEEE 802.15.4
• Stack EmberZnet3.4.x (ZigBee PRO)
• Modbus/RTU
• Device address settable via internal dip-switch

RF characteristics

• Frequency: 2405 MHz ÷ 2480 MHz
• Modulation: DSSS
• Nominal transmission power: 2mW (3 dBm)
• Reception sensitivity: -95 dBm
• Internal antenna gain: 0 dB
• Coverage outdoor/indoor: 100m/30m

Supply

• AA high energy density lithium battery 3,6V/2000mAh
• Battery life: 3 years in case of 1 transmission per minute at 20°C

Temperature/Humidity Sensor

• Sensor used: Sensirion SMD SHT11 series
• Temperature measurement range: from -40 to 120°C
• Reading accuracy inside measurement range: +/- 1,5°C max. (view graph)
• Temperature measurements in tenth degrees
• Humidity measurement range: from 0 to 100% RH%
• Reading accuracy +/- 5 RH% max. (view graph)

Environment parameters

• Operating temperature: -10 ÷ +60°C; <80% U.R. not condensing
• Storage temperature: -20 ÷ +70°C; <80% U.R. not condensing
• Degree of protection: IP 55

Compliant with 2006/95/EEC, 89/336/EEC, 99/5/EEC directives Reference Norms

• ETSI EN 300 328: Radio Compatibility for digitals wide band transmissions
• ETSI EN 301 489: Radio Compatibility
• EN 61000-6-2: Electromagnetic Compatibility – Emissions
• EN 61000-6-3: Electromagnetic Compatibility – Immunity
• EN 60950-1: Electric Safety