Name	Description	Category
Testo 0635 9535 Vane Velocity Measurement Probe with a Telescopic Handle	Ø 0.6 in. 35 in. telescopic handle Measuring range: +118 to +8000 Accuracy ±(40 fpm +1.5% of rdg.)	Test Leads & Probes
Testo 0636 9735 Duct humidity / temperature probe for 435 HVAC and IAQ meters	Measuring Range: -4 to +160° F 0 to +100% RH Accuracy ±0.5° F ±2% RH (+2 to +98% RH) 0.5 in. Ø probe tip	Test Leads & Probes
Testo 0636 9736 Plug-in Humidity Probe Head for wireless handles	Humidity probe Measuring range: -20 to +70° C 0 to +100% RH	Test Leads & Probes
Testo 0638 1645 Absolute pressure probe, 0 to +2000 hPa Range, +/- 5 hPa Accuracy	Absolute pressure probe 1.5m Cable length Measuring range: 0 to 2000 hPa Accuracy: +/-5 hPa (0 to +2000 hPa)	Test Leads & Probes
Testo 0638 1741 Stainless Steel Low Pressure probe, -1 to +10 bar Range, 7/16" UNF Screw-in Thread	Low pressure probe Refrigerant-proof stainless steel Measuring range: -1 to 10 bar 7/16" UNF screw-in thread Accuracy: +/-1 percent of fsv	Test Leads & Probes
Testo 0638 1742 Oil Pressure Probe with 2.9m Cable for Refrigeration System Analyzers	Oil pressure probe to monitor the oil level With 2.9 m cable, refrigerant and oil resistant For 556/560/570 Refrigeration System Analyzers Measuring range: 0 to 25 barrel Accuracy: 1.5 percent of fsv	Test Leads & Probes
Testo 0638 1835 Absolute pressure probe	Absolute pressure probe 1.5m Cable length Measuring range: 0 to 2000 hPa Accuracy: +/-5 hPa (0 to +2000 hPa)	Test Leads & Probes
Testo 0638 1841 Stainless Steel High Pressure Probe, 7/16" UNF Screw-in Thread	High pressure probe Refrigerant-proof stainless steel 7/16" UNF screw-in thread Accuracy: +/-1 percent of fsv Accuracy: +/-1 percent of fsv	Test Leads & Probes