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Temperature - NTC | |
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Measuring range | -40° to 302 °F / -40 to +150 °C |
Accuracy | ±2.3 °F (-4° to 185 °F) / ±1.3 °C (-20 to +85 °C) |
Resolution | 0.1 °F / 0.1 °C |
Pressure measurement | |
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Measuring range | -15 to +870 psi / -1 to +60 bar |
Accuracy | ±0.5 |
Resolution | 0.01 psi / 0.01 bar |
Probe connection | 7 / 16 in. - UNF |
Overload rel. (high pressure) | +943 psi / +65 bar |
General technical data | |
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Dimensions | 7 x 4 x 1 (testo 115i) / 183 x 90 x 30 (testo 115i) 5 x 1 x 1 (testo 549i) / 125 x 32 x 31 (testo 549i) |
Operating temperature | -4° to 122 °F / -20 to +50 °C |
System requirements | requires iOS 8.3 or newer; requires Android 4.3 or newer; requires mobile end device with Bluetooth 4.0 |
Battery type | 3 x AAA |
Battery life | 150 h (testo 115i); 250 h (testo 549i) |
Pressure media | CFC, HFC, HCFC, N, H₂O, CO₂ |
Storage temperature | -4° to 140 °F / -20 to +60 °C |