Non-contact infrared measurement of surface temperature
Easy selection of emission level via stored materials list
Highly visible marking of the measuring spot thanks to 8-point laser
Image documentation with readings and measuring spot marking

Carry out non-contact and App-controlled measurement of wall temperatures, as well as fuse and component temperatures in air conditioning systems: with the professional testo 805i infrared thermometer with 8-point laser circle for highly visible measuring spot marking.

Product Description:
The testo 805i infrared thermometer, in conjunction with a smartphone or tablet, functions as a compact IR thermometer for wall temperatures, as well as fuse and component temperatures in air conditioning systems. The measuring point is marked clearly with a laser circle made up of eight dots – so you always know precisely where to measure.

Documentation including images via App on a smartphone/tablet
With the testo Smart Probes App installed on a terminal device, users can view their readings conveniently. And that's not all: the App can also be used to create and document images, including temperature values and laser marking. A separate measurement menu makes it easier to detect areas that are susceptible to mould. Particularly useful: a list containing the emission levels of certain materials is already stored in the App, so there's no longer any need to waste your time looking these up in tables. All measurement data is displayed either as a chart or in table form. The measurement data log can then be emailed directly as a PDF or Excel file.

System requirements:
iOS 8.3 or later
Android 4.3 or later
Bluetooth 4.0

Technical data:
Temperature Infrared:
Measuring range: -30 to +250 °C
Accuracy: ±1.5 °C or ±1.5 % of mv (0 to +250 °C)
±2 °C (-20 to -0.1 °C)
±2.5 °C (-30 to -20.1 °C)
Resolution: 0.1 °C

General technical data:
Dimensions: 140 x 36 x 25 mm
Operating temperature: -10 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 AAA micro batteries
Battery life: 30 h
Storage temperature: -20 to +60 °C

Start your wireless measurements on refrigeration and air conditioning systems and heat pumps straight away. Thanks to the Bluetooth vacuum probe supplied, you can even measure vacuum without any cables or hoses. You will get the testo 557s smart digital manifold with Bluetooth and 4-way valve block, one testo 552i wireless vacuum probe (Bluetooth), two testo 115i wireless clamp thermometers (Bluetooth, NTC) and a robust transport case. For other wireless measurements, other optionally available testo Smart Probes are also ideal.

- Completely wireless measurements and all results at a glance: thanks to Bluetooth probes and large graphic display
- Exceptionally compact and reliable thanks to the easy-to-handle, robust housing with IP 54 protection class
- Easy, wireless, flexible measurements and documentation: Temperature and vacuum measurements via automatic Bluetooth® connection, testo Smart App for documentation and lots more

Applications: Refrigeration systems, air conditioning systems, heat pumps
- Determination of high and low pressure, automatic determination of condensation and evaporation temperature and calculation of superheating/subcooling. All results can be read simultaneously on one screen
- Tightness test: Recording and analysis of the pressure curve
- Automatic calculation of the target superheat (in conjunction with the appropriate measuring instrument, e.g. Testo Smart Probe)
- Measure vacuum: Graphic progression display of the measurement with indication of the start and differential value
- Evacuation: Graphic progression display of the measurement with indication of the start and differential value (in conjunction with the appropriate Testo Smart Probe, e.g. testo 552i vacuum probe)

Technical Data: testo 557s - Smart digital manifold with Bluetooth and 4-way valve block
Temperature:
Measuring range: -50 to +150 °C
Accuracy: ±0,5 °C
Resolution: 0,1 °C
Probe connection: 2 x Plug-in (NTC)
Pressure measurement:
Measuring range: -1 to 60 bar
Accuracy: ±0,5 % fs
Resolution: 0,01 bar
Probe connection: 3 x 7/16" – UNF + 1 x 5/8'' – UNF
Overload rel. (high pressure): 65 bar
General technical data:
Weight: 1243 g
Dimensions: 229 x 112,5 x 71 mm (LxWxH)
Operating temperature: -20 to +50 °C
Protection class: IP54
Product colour: Black
Auto-off: 10 min (*when not connected via Bluetooth)
Battery type: 4 x type AA batteries
Battery life: 250 h with no illumination, no Bluetooth®h (without illumination, without Bluetooth®, without vacuum probe); 100 h with illumination and Bluetooth®
Radio range: 150 m
Pressure media: CFC
Refrigerants in instrument: R1234yf; R744 (CO₂); R437A; R503; R452A; R500; R114; R444B; R407H; R422B; R434A; R410A; R290; R449A; R401B; R407F; R13; R123; R718 (H₂O); R404A; R125; R416A; R421B; R422C; R448A; R22; R407A; R409A; R12; R454B; R414B; R442A; R1233zd; R420A; R424A; R458A; R427A; R450A; R124; R502; R1234ze; R600a; R23; R402B; R455A; R454A; R407C; R453a; R513A; R401A; R422D; R402A; R507; R454C; R408A; R421A; R134a; R32; R452B; R438A
System requirements: requires iOS 7.1 or newer; requires Android 4.3 or newer; requires mobile end device with Bluetooth 4.0
requires iOS 11.0 or newer; requires Android 6.0 or newer; requires mobile end device with Bluetooth 4.0
Refrigerants update via App: R11; FX80; I12A; R1150; R1270; R13B1; R14; R142B; R152A; R161; R170; R227; R236fa; R245fa; R401C; R406A; R407B; R407D; R41; R411A; R412A; R413A; R417A; R417B; R417C; R422A; R426A; R508A; R508B; R600; RIS89; SP22
Storage temperature: -20 to +60 °C

Technical Data: testo 552i - App-controlled wireless vacuum probe
General technical data:
Weight: 142 g
Dimensions: 150 x 32 x 31 mm (LxWxH)
Operating temperature: -10 to +50 °C
Protection class: IP54
System requirements: requires iOS 8.3 or newer; requires Android 4.3 or newer; requires mobile end device with Bluetooth 4.0
Product colour: black/orange
Auto-off: 10 min (when not connected via Bluetooth)
Battery type: 3 AAA micro batteries
Battery life: 39 h
Connection: 7/16“ UNF
Interface: Bluetooth® 4.2
Storage temperature: -20 to +50 °C
Absolute Pressure:
Measuring range: 0 to 26,66 mbar / 0 to 20000 micron
Accuracy: ±10 micron + 10 % of mv (100 to 1000 micron)
Resolution: 1 micron (0 to 1000 micron) / 10 micron (1000 to 2000 micron) / 100 micron (2000 to 5000 micron)
Overload: absolute: 6,0 bar / 87 psi (relative: 5,0 bar / 72 psi)

Technical Data: testo 115i - Clamp thermometer operated via smartphone
Temperature - NTC:
Measuring range: -40 to +150 °C
Accuracy: ±1,3 °C (-20 to +85 °C)
Resolution: 0,1 °C
General technical data:
Weight: 127.4 g
Dimensions: 183 x 90 x 30 mm
Operating temperature: -20 to +50 °C
Product-/housing material: Plastic
System requirements: requires iOS 8.3 or newer; requires Android 4.3 or newer; requires mobile end device with Bluetooth 4.0
Product colour: black/orange
Battery type: 3 AAA micro batteries
Battery life: 150 h
Data transfer: Bluetooth®
Radio range: 100 m
Storage temperature: -20 to +60 °C