FGD- WSG30 4-20 Wireless Sensor for Sensaphone WSG30 System The WSG30 Wireless 4-20mA sensor is designed to work exclusively with the Sensaphone WSG30 not included . This sensor includes a built-in radio transmitter, 4-20mA input and a 24V loop power supply. Use this wireless sensor monitor the output of any 4-20mA transducer. The sensor comes with a plug-in power supply and three AA alkaline batteries which will power the sensor for several hours if main AC power fails.Made by Sensaphone. Name WSG Wireless 4-20mA Sensor Product # FGD-WSG30-4-20 Operating Temperature Range 32 degrees to 122 degreesF 0 degrees to 50 degreesC Operating Humidity Range 0-95% Input Load 260 Ohms Accuracy /-1% Transmit Power Output 100mW 20dBm Range Up to 300' 90m Power Requirements 2 AA Batteries / 5VDC Power Supply Included Wireless Technology ISM 2.4GHz, 100 mW 20dBm Housing White plastic Size 6.8? x 3.5? x 1.5? 17.2cm x 8.9cm x 3.8cm Compatibility WSG30 Package Contents x1 WSG Wireless Dry Contact Sensor x2 AA Alkaline batteries x1 Mounting kit x1 120VAC 60Hz/5VDC Power Supply This item ships from a separate warehouse and may require extra time for delivery.