The Liebert TW420 and THW420 temperature and humidity sensors provide accurate sensing of room temperature and humidity, transmitting the data via 4-20 mA output signal to the Liebert Universal Monitor.

• Liebert TW420 is a wallmounted, remote temperature sensor that provides a 4-20mA signal. Monitored temperature range is 45°F to 96°F (7°C to 35°C).
• Liebert THW420 is a wallmounted, remote combination temperature and humidity sensor that provides two 4-20mA signals. Monitored temperature range is 45°F to 96°F (7°C to 35°C), with 0 to 100% RH.

Flexibility

• Remote monitors provide temperature or temperature/humidity indication to Liebert Universal Monitor

Higher Availability

• Specifically designed for temperature and humidity sensing and transmission over long distances without degradation of the 4-20 mA signal

Lowest Total Cost Of Ownership

• Easy to install

Ideally Suited For

• Data centers
• Process control areas
• Telecom switch rooms
• Remote communications shelters
• Communications closets
• Equipment rooms