USER-FRIENDLY MEASURING DEVICES passive temperature sensors pte-oi Outside air temperature/illuminance sensor for HVAC applications PTE-OI is a combination of a passive temperature and an illuminance sensor engineered for HVAC applications. PTE-OI is used to sense outside air temperature and ambient lighting conditions. The temperature sensor is housed inside a stainless steel sleeve that protects it from the environment and condensation, ensuring long service life. In addition to the outside air temperature, the PTE-OI includes an ambient illuminance sensor. The illuminance sensor is hermetically sealed for protection. PTE-OI is available with the following sensor types: • NTC10k • NTC20k • Pt1000 • Ni1000 • Ni1000-LG PTE-OI is commonly used in HVAC systems for: • measuring outside air temperature • controlling the outside lighting of buildings Copyright HK Instruments 2017 www.hkinstruments.fi Datasheet Version 2.0 2017

PASSIVE TEMPERATURE SENSORS PTE-OI SPECIFICATIONS Performance Technical Specifications Illuminance measurement range: 0…1000 lx Accuracy: NTC10k ± 0.25 °C @ 25 °C NTC20k ± 0.25 °C @ 25 °C Pt1000 ± 0.3 °C @ 0 °C Ni1000 ± 0.4 °C @ 0 °C Ni1000-LG ± 0.4 °C @ 0 °C Illuminance sensor ± 20 % @ 100 lx Protection class: IP54 Environment: Operating temperature: -50 … +50 °C Meets the requirements for CE marking: RoHS Directive 2011/65/EU WEEE Directive 2012/19/EU Housing material: ABS Cover material: PMMA Housing dimensions: 90.0 x 95.0 x 36.0 mm Weight: 95 g COMPANY WITH MANAGEMENT SYSTEM CERTIFIED BY...