Features:Temperature Range: -40 to +70°C / -40°F to +158°FSensor Type: PST (Thermistor)Connector Type: Lumberg (6-Pin)The RFAX500D PST Air Probe is a damped, duplex air probe for use with Wireless Temperature Monitoring Systems. Each probe is connected to a 5.0m lead.The RFAX500D PST Air Probe is fitted with a 6-Pin Lumberg connector with locking screw, to provide a strong and secure probe-to-instrument connection with better prevention of liquid ingress.Air Probes ExplainedIt is fair to say, that any probe that can measure temperature, could be used as an Air Probe, with varying degrees of success. However, Air Probes are specifically designed for this purpose and so have a higher degree of accuracy and response.Air Probes are often designed to be very quick response with a low thermal mass. The sensor is designed to be as small as possible so that the air temperature is transferred to the probe with minimal temperature loss or gain to maintain a high degree of accuracy.That said, all Comark Air Probes for RF500 are inherently designed to be slow. Why is this? Read on to find out….We supply a Damped Air Probe style for the RF500 Wireless Monitoring System, which comes in the form of a small stainless steel bullet shaped end, see picture.This type of construction has two purposes:It protects the sensor from physical damageIt slows the response of the probe down significantlyIn certain scenarios, it is beneficial to have a slower response to changes in air temperature, hence having aDamped Air Probe. For example, when you place a probe inside a fridge or freezer, you probably don't want an alarm going off every time someone opens the door.The Damped Air Probes do a good job of reflecting the samples in the fridge. As the RF500 Wireless Monitoring System is your early warning notification for any alarms, it would be unsuitable if ‘false alarms' were constantly being raised.All Wireless Temperature Monitoring System Air Probes are fitted with a 6-Pin Lumberg Connector and a stainless steel Damped Air Probe end, as shown below.