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Sensaphone WSG30-TMTX

Wireless temperature sensor with external probe

Item # 721WSGTMTX

Need help?
Contact our Virginia-based experts.

Item # 721WSGTMTX

Ships free today

Low stock

$199.00 -$70.00 Outlet savings

Need help?
Contact our Virginia-based experts.

About the Sensaphone WSG30-TMTX

Sensaphone's wireless temperature sensor with external probe is designed to monitor temperature in a refrigerator, freezer or other harsh environment. When used with the WSG30 wireless gateway, the sensor can transmit alarm messages via text or email to you and your staff, so you can follow up and prevent damage to goods and machinery before it can occur.

Product highlights:

  • wirelessly reports temperature variations so you can prevent damage to stock and sensitive equipment
  • remote temperature probe can be manually placed for direct monitoring of specific spaces
  • wireless range: 300 feet
  • sensing temperature range: -20-115° F
  • two included AA batteries power the sensor for up to two years
  • 3-1/8"W x 3-15/16"H x 1-1/8"D
  • warranty: 1 year
  • Our 60-day money-back guarantee

What's in the box:

  • WSG Wireless temperature sensor
  • FGD-0101 Weatherproof 2.8K Temperature Probe with attached 12' length of 24-gauge wire
  • Probe mounting bracket
  • "AA" batteries
  • #6 Screw
  • Screwdriver
  • Instructions card

Scratch & Dent items may be missing non-essential accessories. In some cases the manufacturer's accessories have been replaced with generic equivalents.

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More details on the Sensaphone WSG30-TMTX

Mark G.

Product Research


Overview: The Sensaphone WSG Wireless Temperature Sensor with External Probe is designed to work exclusively with the WSG30 Wireless Sensor Gateway system. The sensor comes with the FGD-0101 weatherproof external probe, which is connected to a 12' length of 24-gauge wire. The sensor monitors the ambient temperature where the probe is mounted. It has a temperature monitoring range of -20° to +115°F (-17° to +57°C), and is accurate to within +/-1°F. Data is sent from the sensor to the WSG30 via Wi-Fi (2.4 GHz). The sensor comes with two "AA" alkaline batteries.

Note: The sensor has an internal temperature element which can be used instead of the external probe, if desired. Without the probe connected, the monitoring range is 32°-115°F.

Wireless System: The WSG30 remote monitoring system consists of a series of wireless sensors that transmit data over Wi-Fi up to 300' indoors (and greater distances when it has line-of-sight). Sensors can be used as a wireless sensor/router, or as a end point. As a router, the sensor can extend the range of the system by an additional 300'.

Power Requirements: The WSG Temperature Sensor with External Probe operates on two "AA" alkaline batteries (included). The batteries will power the sensor for up to 2 years in end point mode (with a 3 second sampling interval). If the sensor is being used in router mode, an external plug-in power supply (Sensaphone XFR-0041) is required. Two screw terminals (marked 5V AC) are provided on the sensor's circuit board to connect the power supply. When the external power supply is used, the "AA" batteries function as backup power if the main AC power fails.

Mounting: The sensor is designed to be mounted on a flat surface. A single keyhole mount is provided for hanging on a wall (using a #6 screw). It should be mounted as high as possible for optimal wireless transmission, and near an electrical outlet if you're using the optional AC power supply. The probe wires should be connected to the input terminal and ground on the circuit board.

Registration: The Temperature Sensor's serial number needs to be entered into the WSG30 before the device is powered up. This can be done on the WSG30's web page or the keypad.

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