Tester

The Results of Tester46

Smart Filtering

Manufacturer

TESTO

Package

colour

material quality

-
Black
White
black/orange

specifications

thickness

-
135 x 60 x 28 mm
190 x 57 x 42 mm
119 x 46 x 25 mm (Including Protective Cap)
202x57x42mm
270 x 60 x 61 mm
360*360mm
119 x 46 x 25 mm
155 x 25 x 23 mm
201*83*44mm
170x50x300mm
145x38x167mm
197x33x20mm
236*108*45mm
270 x 65 x 35 mm
270 x 70 x 35 mm
199x62x40mm
148 x 36 x 23 mm
146x60x28mm
160 x 110 x 50 mm
154 x 43 x 21 mm
125 x 32 x 31 mm
229 x 60 x 28 mm
Probe: 134 x 54 x 23 mm
200 x 30 x 41 mm
140 x 36 x 25 mm
190x57x42mm
270x190x60mm

diameter

-
90 g (Including Battery and Protective Cap)
323 g
348 g
500 g (including batteries)
63 g
230 g
295 g
268 g
92 g
500 g
117.8 g
156.6 g
229 g
288 g
119.6 g
97 g

Interrupting Rating

width

aroma

-
Airflow Grill

Rod length

hydraulic pressure

-
Rechargeable Battery: 1500mAh, Power Supply 5V/1A
3 x 1.5V AA Batteries

purpose

Flow range

Appearance/Color

bearing

Total length

-
For Air Diffuser

Motor power

pipe diameter

Nominal diameter

-
black/orange

Input

Undeclared tolerance

Inflation height

Usage

-
according to DIN EN 61243-3:2011
± (3% of Measured Value + 3 Digits)

Dynamic Range

Interface type

Fan type

output power

-
-10 ~ +50 ℃
-20 ~ +50 ℃
-40 ~ +70 ℃
-20 ~ +60 ℃
-25 ~ +70 ℃
-10-+70℃
0 ~ +50 ℃
-15 ~ +60 ℃
-20-+70℃
-25-+70℃

Working temperature and humidity

contact material

Belt length

Wire gauge

Protection level

-
ABS+PC/TPE

Data transmission rate

-
IP67
IP65
IP40
IP68
IP10
IP64
IP42

Power supply voltage

-
50 mA

RatedOutputVoltage

-
0-+50℃
-10 ~ +50 ℃
-20 ~ +50 ℃
0 ~ +50 ℃
0-+60℃
-18 ~ +50 ℃
-5~45℃
-20~ +50℃
-20-+50℃
-;0 ~ +50 ℃

Temperature resolution

Input/Output Structure

Aperture Size

Working humidity

-
12 ~ 1000 V
0.3~20 m/s、0~99999 m³/h、0~50℃
12 ~ 690 V
0.1 ~ 200 A

Loudspeaker decibel

-
0 ~ 80 %RH
20 ~ 80 %RH
0-+90%RH
0 ~ 95 %RH
0-75%RH
20-80%RH

Vertical angle distribution

-
±0.5℃
±0.4℃,±0.02pH
±0.5% Full Scale
±(0.2 m/s + 1.0% of measured value)
±3 hPa ± 1 Digit
0.5% full scale
±0.05 hPa (0.31 ~ 1.00 hPa)
±(0.1 m/s + 1.5 % of the measured value)
±1.5℃,±2%TPM
±(0.2 m/s + 2% of Measured Value)
±0.2% Measurement Value
0.02% Measurement Value
±(0.03 m/s + 4.0% of reading) (0.01 ~ +20 m/s)
±(0.2 hPa + 1.5 % of measured value) (+1 ~ +150 hPa)
±0.2 Vol.%
±0.01 % of Reading
±(10 micron + 10% measurement value) (100 ~ 1000 micron)
±(0.2 m/s + 2 % of measured value) (0.4 ~ 20 m/s)
±(0.02% measurement value)
±(100 ppm + 5 % of the measured value)
±0.02% of the measured value
F2 = 5% = cos-true evaluation
±(0.1 m/s + 5% of Measured Value) (0 ~ 2 m/s)

Current Specification

Luminous light source

-
< 1 s
30s
30 s
<1s

Indication method

Display error

Detecting gas types

Water output

Digestion capacity

-
0-+60℃,0-14pH
0 ~ 30 m/s
0 ~ 26.66 mbar /
300 ~ 1200 hPa
0.6 ~ 40 m/s
0-+2000hPa
0 ~ 100 hPa
0 ~ +440 m³/h (testo 417 with flow hood kit (0563 1417))
+40-+200℃,0.0-40.0%TPM
0.4 ~ 20 m/s
0.1 ~ 19999 rpm
30 ~ 300000 fpm
985-10830fpm,0-+20hPa,+5-+55m/s
0.01 ~ 30 m/s
0 ~ +150 hPa
0 ~ 21 Vol.%
30 ~ 12500 rpm
0.4 ~ 30 m/s
-1 ~ +60 bar
100 ~ 29999 rpm
0 ~ 10000 ppm
1 ~ 99999 rpm
0-+200hPa
0 ~ 100000 Lux
0-+80℃,0-14pH

power dissipation

BasicAccuracy

NumberOfChannels

Probe head diameter

-
35mm

Cable length

-
10mm
9 mm

Probe sleeve length

-
1.4 m
1.5 m

Probe rod diameter

-
35mm
3.5mm
25mm
175mm
3.5mm,35mm
400 mm

Battery usage time

-
11mm
15mm
16 mm
7.5 mm
12 mm

Battery type

-
15 hours
50 hours (normal use, backlight off)
200 Hours (Normal Use, Backlight Off)
60 h
About 6 Hours Continuous Use
120h
Approximately 16 hours continuous use
25h
Approximately 80 Hours
NiMH Rechargeable Battery: Approximately 11 Hours at 6000FPM; Regular Battery: Approximately 5 Hours at 6000FPM
35 h
150 Hours
50 hrs (without Bluetooth/backlighting)
130 Hours
30 h
70 h
30 Hours
6h

Humidity measurement range

-
9V Battery
3 AAA Batteries
2 AAA Batteries
LR44 button cell battery
1.5V AAA(LR03)
3x AA
1 battery pack (including 6 NiMh batteries)
2 x D
One CR2032 Battery
2AAA batteries
NiMH rechargeable battery
2 x AA

overload

0 ~ 100 %RH
-

system requirements

-
absolute: 6.0 bar / 87 psi

Fixed cable

-
requires iOS 13.0 or newer; requires Android 8.0 or newer; requires mobile end device with Bluetooth 4.2;-

Frame rate

-
Bluetooth® 4.0 wireless technology

thermocouple

-
100 m

Field of view angle

-
2 x 7/16" UNF

SamplingRateRange

-
329 mm
180 mm

Inner box size

-
-20~50℃

input plug

Pressure measurement range

Withstand voltage value

light source

Working power supply

-
3 g/a
4 g/a (0.15 oz/a)
3g/a

Display screen options

Thermal sensitivity

-
0.1 ℃

Laser

OpticalResolution

Low alarm value

Current accuracy

-
370 mm
370mm

Sensor lifespan

-
±(3% of Reading + 3 Digits)

Start time

-
80 ~ 100 h (Approximately 1 Year of Use)

Battery power supply voltage:

-
< 50 s (0-+50 ℃); < 80 s (-20-0 ℃)

Flash lifespan

-
100-240V,50/60Hz

Illuminance value

-
200,000,000 flashes

Single alarm

-
1200 Lux (at a distance of about 20 cm)

authorization

-
LED; Sound Alarm

current range

Voltage accuracy

-
0.1-200A

Voltage range

-
±(1.5% measurement value + 3 Digit)

Measurement rate

-
6-600V

Unit optional

-
0.5 s

Test channel

Rechargeable battery protective cover

Flash intensity

Flash duration

-
4800 lux at 6000 FPM/30cm

Flash color

-
Adjustable

Low level

-
About 6500K
6000 ~ 6500 K

Maximum static pressure

-
< 1 V

Maximum reading

-
500 mbar

parameter

storage

Internal maximum operating temperature

Instrument power consumption

Thermocouple type

Measurement scale

Altitude

-
0.5 s

Battery range

Applicable batteries

Scope CCA

Overload relative pressure (high pressure)

Infrared temperature measurement range

-
+65 bar

Pressure media

-
-30 ~ +250 ℃

data transfer

Probe connection

-
Bluetooth®

Alarm method

-
7 / 16 inch - UNF

Sensor structure

Gas detection

LED indicator light

Test impedance

Display rate

Intput

The product includes

Open circuit voltage

-
2x testo 115i, 2x testo 549i, Portable Instrument Case
Testo 405i, Testo 410i, Testo 605i, Testo 805i, Instrument Case

overload protection

Product colour

Overvoltage

Display Size

-
CAT IV 600V; CAT III 1000V

Input characteristics

-
Multifunctional

Power supply method

Impeller diameter

Test time

-
30 mm

Shielding test

InputWithstandVoltageBetweenChannels

MaximumWithstandVoltageBetweenChannels

PreheatingTime

Output current upper limit lmax

ResolvingPower

External dimensions (mm)

-
0.1 m/s
0.1 hPa
1hPa
0.01 hPa
0.1℃
0.1 m³/h (0 ~ +100 )
0.1℃,0.5%TPM
0.1℃,0.01pH
1 rpm (1000 ~ 99999 rpm)
±1 (1000 ~ 300000 fpm)
0.1m/s,0.01hPa,0.1fpm
max. 0.1 A
0.1V
0.01 m/s
0.1 Vol.%
1 rpm
10 micron (1000 ~ 2000 micron) /
0.01 bar
0.1 rpm (100 ~ 999.9 rpm)
1 ppm
0.001hPa(0-+2hPa),0.01hPa(2.01-+20hPa),0.10hPa(20.1-+200hPa)
0.1 Lux (< 10000 Lux)

Testable port

Infrared temperature measurement accuracy

Maximum operating current

-
±2 ℃ (-20 ~ -0.1 ℃)

Digital average power

Results:46 Smart Filtering

Images	Pricing	Quantity	Availability	Mfr.Part #	Manufacturer	Description	RoHS	eBee Part#	Package	Packaging	colour	material quality	category	Protection level	Working humidity	power dissipation	Probe head diameter	Cable length	Probe sleeve length	Probe rod diameter	Battery usage time	Battery type	Humidity measurement range	overload	system requirements	Current accuracy	Sensor lifespan	Start time	Battery power supply voltage:	Flash lifespan	Illuminance value	Single alarm	authorization	current range	Voltage accuracy	Voltage range	Measurement rate	Unit optional	Test channel	Rechargeable battery protective cover	Flash intensity	Flash duration	Flash color	Low level	Maximum static pressure	Maximum reading	parameter	storage	Internal maximum operating temperature	Instrument power consumption	Thermocouple type	Measurement scale	Altitude	Battery range	Applicable batteries	Scope CCA	Overload relative pressure (high pressure)	Infrared temperature measurement range	Pressure media	data transfer	Probe connection	Alarm method	Sensor structure	Gas detection	LED indicator light	Test impedance	Display rate	Intput	The product includes	Open circuit voltage	overload protection	Product colour	Overvoltage	Display Size	Input characteristics	Power supply method	Impeller diameter	Test time	Shielding test	InputWithstandVoltageBetweenChannels	MaximumWithstandVoltageBetweenChannels	PreheatingTime	Output current upper limit lmax	ResolvingPower	External dimensions (mm)	Testable port	Infrared temperature measurement accuracy	Maximum operating current

Images	Pricing	Quantity	Availability	Mfr.Part #	Manufacturer	Description	RoHS	eBee Part#	Package	Packaging	colour	material quality	category	Protection level	Working humidity	power dissipation	Probe head diameter	Cable length	Probe sleeve length	Probe rod diameter	Battery usage time	Battery type	Humidity measurement range	overload	system requirements	Current accuracy	Sensor lifespan	Start time	Battery power supply voltage:	Flash lifespan	Illuminance value	Single alarm	authorization	current range	Voltage accuracy	Voltage range	Measurement rate	Unit optional	Test channel	Rechargeable battery protective cover	Flash intensity	Flash duration	Flash color	Low level	Maximum static pressure	Maximum reading	parameter	storage	Internal maximum operating temperature	Instrument power consumption	Thermocouple type	Measurement scale	Altitude	Battery range	Applicable batteries	Scope CCA	Overload relative pressure (high pressure)	Infrared temperature measurement range	Pressure media	data transfer	Probe connection	Alarm method	Sensor structure	Gas detection	LED indicator light	Test impedance	Display rate	Intput	The product includes	Open circuit voltage	overload protection	Product colour	Overvoltage	Display Size	Input characteristics	Power supply method	Impeller diameter	Test time	Shielding test	InputWithstandVoltageBetweenChannels	MaximumWithstandVoltageBetweenChannels	PreheatingTime	Output current upper limit lmax	ResolvingPower	External dimensions (mm)	Testable port	Infrared temperature measurement accuracy	Maximum operating current
Datasheet	1+ $96.9701	Min: 1 Mult: 1	89843 In Stock	0560 1510	TESTO	Tester	-	E822449424	-	Box-packed	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Datasheet	1+ $840.4052	Min: 1 Mult: 1	75680 In Stock	0563 3104	TESTO	Tester	-	E822449328	-	Box-packed	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Datasheet	1+ $907.5694	Min: 1 Mult: 1	78144 In Stock	0563 4760	TESTO	Tester	-	E822449353	-	Box-packed	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Datasheet	1+ $554.8567	Min: 1 Mult: 1	84599 In Stock	0563 2512	TESTO	Tester	-	E822449358	-	Box-packed	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Datasheet	1+ $183.7978	Min: 1 Mult: 1	47050 In Stock	0560 5522	TESTO	Tester	-	E822449368	-	Box-packed	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Datasheet	1+ $87.0320	Min: 1 Mult: 1	29823 In Stock	0560 1410	TESTO	Tester	-	E822449423	-	Box-packed	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Datasheet	1+ $71.5612	Min: 1 Mult: 1	55194 In Stock	0560 2549 02	TESTO	Tester	-	E822449433	-	Box-packed	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Datasheet	1+ $135.7787	Min: 1 Mult: 1	25455 In Stock	0560 0460	TESTO	Tester	-	E822449350	-	Box-packed	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Datasheet	1+ $567.8046	Min: 1 Mult: 1	31150 In Stock	0563 0535	TESTO	Tester	-	E822449365	-	Box-packed	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Datasheet	1+ $583.2526	Min: 1 Mult: 1	77006 In Stock	0563 1417	TESTO	Tester	-	E822449336	-	Box-packed	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Datasheet	1+ $264.4928	Min: 1 Mult: 1	57646 In Stock	0563 0465	TESTO	Tester	-	E822449351	-	Box-packed	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Datasheet	1+ $554.8567	Min: 1 Mult: 1	67588 In Stock	0563 1512	TESTO	Tester	-	E822449357	-	Box-packed	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Datasheet	1+ $511.6374	Min: 1 Mult: 1	76372 In Stock	0563 1545	TESTO	Tester	-	E822449367	-	Box-packed	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Datasheet	1+ $99.5087	Min: 1 Mult: 1	92618 In Stock	0560 1405	TESTO	Tester	-	E822449422	-	Box-packed	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Datasheet	1+ $119.9781	Min: 1 Mult: 1	84126 In Stock	0560 1805	TESTO	Tester	-	E822449432	-	Box-packed	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Datasheet	1+ $127.7022	Min: 1 Mult: 1	58306 In Stock	0563 2063	TESTO	Tester	-	E822449318	-	Box-packed	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Datasheet	1+ $273.3160	Min: 1 Mult: 1	72190 In Stock	0563 2066	TESTO	Tester	-	E822449317	-	Box-packed	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Datasheet	1+ $182.9918	Min: 1 Mult: 1	85414 In Stock	0563 2062	TESTO	Tester	-	E822449316	-	Box-packed	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Datasheet	1+ $449.2694	Min: 1 Mult: 1	22475 In Stock	0563 3164	TESTO	Tester	-	E822449326	-	Box-packed	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Datasheet	1+ $505.4784	Min: 1 Mult: 1	76662 In Stock	0563 0003 10	TESTO	Tester	-	E822449436	-	Box-packed	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-

The Results of Tester46

Manufacturer

Package

colour

material quality

specifications

thickness

diameter

Interrupting Rating

width

category

aroma

Rod length

hydraulic pressure

purpose

Flow range

Appearance/Color

bearing

Total length

Motor power

pipe diameter

Nominal diameter

Input

Undeclared tolerance

Inflation height

Usage

Dynamic Range

Interface type

Fan type

output power

Working temperature and humidity

contact material

Belt length

Wire gauge

Protection level

Data transmission rate

Power supply voltage

RatedOutputVoltage

Temperature resolution

Input/Output Structure

Aperture Size

Working humidity

Loudspeaker decibel

Vertical angle distribution

Current Specification

Luminous light source

Indication method

Display error

Detecting gas types

Water output

Digestion capacity

power dissipation

BasicAccuracy

NumberOfChannels

Probe head diameter

Cable length

Probe sleeve length

Probe rod diameter

Battery usage time

Battery type

Humidity measurement range

overload

system requirements

Fixed cable

Frame rate

thermocouple

Field of view angle

SamplingRateRange

Inner box size

input plug

Pressure measurement range

Withstand voltage value

light source

Working power supply

Display screen options

Thermal sensitivity

Laser

OpticalResolution

Low alarm value

Current accuracy