Product Search

    SEARCH NOW FOR ALL YOUR HOKUYO AUTOMATIC CO SOLUTIONS

    Radwell is here to supply you with all your plant floor needs.

    Radwell is not an authorised distributor, reseller or representative of the products featured on this website. All product names, trademarks, brands and logos used on this site are the property of their respective owners. The depiction, description or sale of products featuring these names, trademarks, brands and logos is for identification purposes only and is not intended to indicate any affiliation with or authorisation by any rights holder.

    Rockwell Disclaimer: The product is used surplus. Radwell is not an authorised surplus dealer or affiliate for the Manufacturer of this product. The product may have older date codes or be an older series than that available direct from the factory or authorised dealers. Because Radwell is not an authorised distributor of this product, the Original Manufacturer’s warranty does not apply. While many Allen-Bradley PLC products will have firmware already installed, Radwell makes no representation as to whether a PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. Radwell also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from Rockwell, its distributors, or any other source. Radwell also makes no representations as to your right to install any such firmware on the product. Radwell will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.

    Filter Results
    Results 1-50 of 174.
    HOKUYO AUTOMATIC CO UTM-30LX-EW

    HOKUYO AUTOMATIC CO

    UTM-30LX-EW

    LASER SCANNER, RANGEFINDER, ETHERNET INTERFACE, DETECTABLE IN SNOW / RAIN / FOG / DUST, 12VDC
    £5,112.22 Price with VAT: £6,134.66 Buy Surplus As Low As £3,067.33 Price with VAT: £3,680.80
    £3,067.33 Price with VAT: £3,680.80
    Repair Yours £2,545.91 Price with VAT: £3,055.09
    HOKUYO AUTOMATIC CO UTM-30LX-04

    HOKUYO AUTOMATIC CO

    UTM-30LX-04

    SCANNING LASER, SERIES UTM, RANGE FINDER, 0.1 TO 30M RANGE, 270 DEG. SCANNING ANGLE, 1MM RESOLUTION, 25MS/SCAN, 12 VDC, 700 MA, IP64
    £4,133.31 Price with VAT: £4,959.97 Buy Surplus As Low As £2,456.12 Price with VAT: £2,947.34
    £2,456.12 Price with VAT: £2,947.34
    Repair Yours £1,917.93 Price with VAT: £2,301.52
    HOKUYO AUTOMATIC CO UTM-30LX

    HOKUYO AUTOMATIC CO

    UTM-30LX

    SCANNING LASER, SERIES UTM, RANGE FINDER, 0.1 TO 30M RANGE, 270 DEG. SCANNING ANGLE, 1MM RESOLUTION, 25MS/SCAN, 12 VDC, 700 MA, IP64
    £4,092.79 Price with VAT: £4,911.35 Buy Surplus As Low As £2,456.12 Price with VAT: £2,947.34
    £2,456.12 Price with VAT: £2,947.34
    Repair Yours £2,057.35 Price with VAT: £2,468.82
    HOKUYO AUTOMATIC CO UST-10LX

    HOKUYO AUTOMATIC CO

    UST-10LX

    SCANNING LASER RANGEFINDER, ETHERNET INTERFACE FOR COMMUNICATION, MEASUREMENT DATA IN A 270DEG FIELD OF VIEW, 10M WITH MILLIMETER RESOLUTION.
    £1,776.81 Price with VAT: £2,132.17 Buy Surplus As Low As £1,066.27 Price with VAT: £1,279.53
    £1,066.27 Price with VAT: £1,279.53
    Repair Yours £885.66 Price with VAT: £1,062.80
    HOKUYO AUTOMATIC CO UBG-04LX-F01

    HOKUYO AUTOMATIC CO

    UBG-04LX-F01

    LASER, SCANNING, RANGE FINDER, 20-5600MM DETECTABLE RANGE, 28MSEC/SCAN, 240DEGREE AREA SCAN RANGE WITH 0.36DEGREE ANGULAR RESOLUTION, 12V, USB AND SERIAL RS-232 INTERFACE
    £1,738.83 Price with VAT: £2,086.60 Buy Surplus As Low As £869.79 Price with VAT: £1,043.75
    £869.79 Price with VAT: £1,043.75
    Repair Yours £825.96 Price with VAT: £991.16
    HOKUYO AUTOMATIC CO BWF21A

    HOKUYO AUTOMATIC CO

    BWF21A

    OPTICAL SENSOR, 200 M TRANSMISSION DISTANCE, FSK MODULATION, 1 DEGREE DIRECTIONAL ANGLE, 12-24 VDC, 150 MA, 25 PIN CONNECTOR
    ✓ IN STOCK!
    £1,654.95 Price with VAT: £1,985.94 Buy Surplus As Low As £804.31 Price with VAT: £965.17
    £804.31 Price with VAT: £965.17
    Repair Yours £667.57 Price with VAT: £801.09
    HOKUYO AUTOMATIC CO BWF-27A

    HOKUYO AUTOMATIC CO

    BWF-27A

    OPTICAL DATA TRANSMITTER, 24 VDC (18 TO 30 VDC), 100 MA OR LESS (WHEN 24 VDC), TRANSMISSION DISTANCE: 200M, DIRECTIONAL ANGLE: 1, FULL-DUPLEX, RATE: 19, 200BPS, TYPE A
    £1,652.69 Price with VAT: £1,983.22 Buy Surplus As Low As £992.22 Price with VAT: £1,190.66
    £992.22 Price with VAT: £1,190.66
    Repair Yours £823.70 Price with VAT: £988.44
    HOKUYO AUTOMATIC CO BWF-27B

    HOKUYO AUTOMATIC CO

    BWF-27B

    OPTICAL DATA TRANSMITTER, CC-LINK, DC24V, WBWF011, N08DG
    £1,652.69 Price with VAT: £1,983.22 Buy Surplus As Low As £992.22 Price with VAT: £1,190.66
    £992.22 Price with VAT: £1,190.66
    Repair Yours £823.70 Price with VAT: £988.44
    HOKUYO AUTOMATIC CO UAM-05LP-T301

    HOKUYO AUTOMATIC CO

    UAM-05LP-T301

    SAFETY LASER SCANNER, 24 VDC, 6 W, PROTECTION RANGE: 5 M, RESPONSE TIME: 60 MS (MIN), DETECTABLE WIDTH (MIN): 30 MM TROUGH 70 MM, DETECTION RANGE: 270C, IP65
    ✓ IN STOCK!
    £1,918.71 Price with VAT: £2,302.45 Buy Surplus As Low As £1,063.40 Price with VAT: £1,276.08
    £1,063.40 Price with VAT: £1,276.08
    Repair Yours £929.07 Price with VAT: £1,114.88
    HOKUYO AUTOMATIC CO PBS-03JN

    HOKUYO AUTOMATIC CO

    PBS-03JN

    HOKUYO AUTOMATIC CO , PBS03JN, SENSOR, 12-24VDC
    £1,749.57 Price with VAT: £2,099.48 Buy Surplus As Low As £1,049.74 Price with VAT: £1,259.69
    £1,049.74 Price with VAT: £1,259.69
    Repair Yours £938.94 Price with VAT: £1,126.73
    HOKUYO AUTOMATIC CO UBG05LN

    HOKUYO AUTOMATIC CO

    UBG05LN

    SENSOR
    £1,121.44 Price with VAT: £1,345.73 Buy Surplus As Low As £673.32 Price with VAT: £807.98
    £673.32 Price with VAT: £807.98
    Repair Yours £560.72 Price with VAT: £672.86
    HOKUYO AUTOMATIC CO PBS-03JN-V01

    HOKUYO AUTOMATIC CO

    PBS-03JN-V01

    PHOTOELECTRIC SENSOR, 12-24VDC, 180 DEGREE SCAN FIELD
    £1,103.30 Price with VAT: £1,323.96 Buy Surplus As Low As £661.98 Price with VAT: £794.38
    £661.98 Price with VAT: £794.38
    HOKUYO AUTOMATIC CO 2KU25

    HOKUYO AUTOMATIC CO

    2KU25

    VOLTMETER
    £961.23 Price with VAT: £1,153.48 Buy Surplus As Low As £577.34 Price with VAT: £692.81
    £577.34 Price with VAT: £692.81
    Repair Yours £480.62 Price with VAT: £576.74
    HOKUYO AUTOMATIC CO BWF-11A-CE

    HOKUYO AUTOMATIC CO

    BWF-11A-CE

    OPTICAL DATA TRANSMISSION DEVICE, TRANSMISSION DISTANCE: 100M, DIRECTIONAL ANGLE 2, FULL-DUPLEX TWO-WAY TRANSMISSION, TRANSMISSION SPEED DC TO 19.2KBPS, RS-232C/RS-422, 12 TO 24VDC
    £881.13 Price with VAT: £1,057.36 Buy Surplus As Low As £528.98 Price with VAT: £634.78
    £528.98 Price with VAT: £634.78
    Repair Yours £439.05 Price with VAT: £526.86
    HOKUYO AUTOMATIC CO BWF-11B-CE

    HOKUYO AUTOMATIC CO

    BWF-11B-CE

    OPTICAL DATA TRANSMISSION DEVICE, TRANSMISSION DISTANCE: 100M, DIRECTIONAL ANGLE 2, FULL-DUPLEX TWO-WAY TRANSMISSION, TRANSMISSION SPEED DC TO 19.2KBPS, RS-232C/RS-422, 12 TO 24VDC
    £881.13 Price with VAT: £1,057.36 Buy Surplus As Low As £528.98 Price with VAT: £634.78
    £528.98 Price with VAT: £634.78
    Repair Yours £439.05 Price with VAT: £526.86
    HOKUYO AUTOMATIC CO BWF-71A

    HOKUYO AUTOMATIC CO

    BWF-71A

    PHOTOELECTRIC EYE
    £753.42 Price with VAT: £904.10 Buy Surplus As Low As £451.90 Price with VAT: £542.28
    £451.90 Price with VAT: £542.28
    Repair Yours £377.09 Price with VAT: £452.50
    HOKUYO AUTOMATIC CO BWF11A

    HOKUYO AUTOMATIC CO

    BWF11A

    SENSOR
    £673.32 Price with VAT: £807.98 Buy Surplus As Low As £404.29 Price with VAT: £485.15
    £404.29 Price with VAT: £485.15
    Repair Yours £337.04 Price with VAT: £404.44
    HOKUYO AUTOMATIC CO BWF-11B

    HOKUYO AUTOMATIC CO

    BWF-11B

    SENSOR MODULE, OPTICAL DATA TRANSMISSION DEVICE, 100 METER TRANSMISSION DISTANCE, +-2 DEGREES, 2 WAY TRANSMISSION, 12-24 VDC/10-30 VDC, 6.0 MHZ TRANSMISSION, 5.5 MHZ RECEPTION
    ✓ IN STOCK!
    £566.76 Price with VAT: £680.12 Buy Surplus As Low As £273.00 Price with VAT: £327.60
    £273.00 Price with VAT: £327.60
    Repair Yours £226.59 Price with VAT: £271.91
    HOKUYO AUTOMATIC CO ACNKB5AC100V

    HOKUYO AUTOMATIC CO

    ACNKB5AC100V

    COUNTER
    £480.62 Price with VAT: £576.74 Buy Surplus As Low As £288.67 Price with VAT: £346.41
    £288.67 Price with VAT: £346.41
    Repair Yours £240.31 Price with VAT: £288.37
    HOKUYO AUTOMATIC CO ACNKB4AC100V

    HOKUYO AUTOMATIC CO

    ACNKB4AC100V

    COUNTER
    £480.62 Price with VAT: £576.74 Buy Surplus As Low As £288.67 Price with VAT: £346.41
    £288.67 Price with VAT: £346.41
    Repair Yours £240.31 Price with VAT: £288.37
    HOKUYO AUTOMATIC CO DC-MC6-XNC

    HOKUYO AUTOMATIC CO

    DC-MC6-XNC

    AUTO COUNTER, AC100~110 VOLTS, 200~220VOLTS, 2 PRESETS, 2 OUTS, 20 POLES
    ✓ IN STOCK!
    £461.39 Price with VAT: £553.67 Buy Surplus As Low As £221.99 Price with VAT: £266.39
    £221.99 Price with VAT: £266.39
    Repair Yours £173.20 Price with VAT: £207.83
    HOKUYO AUTOMATIC CO BRC-G2BR

    HOKUYO AUTOMATIC CO

    BRC-G2BR

    AUTOMATION SENSOR MODULE
    ✓ IN STOCK!
    £440.00 Price with VAT: £528.00 Buy Surplus As Low As £162.29 Price with VAT: £194.75
    £162.29 Price with VAT: £194.75
    HOKUYO AUTOMATIC CO DMS-HA1-C

    HOKUYO AUTOMATIC CO

    DMS-HA1-C

    OPTICAL SENSOR, DMS SERIES, SIDE ON, 4 BIT, 100MSEC, 18-30VDC, 10MMA MAX. IP64, REPLACES: DM-HA1
    £318.90 Price with VAT: £382.68 Buy Surplus As Low As £191.94 Price with VAT: £230.33
    £191.94 Price with VAT: £230.33
    Repair Yours £159.45 Price with VAT: £191.34
    HOKUYO AUTOMATIC CO DMS-GB1-P

    HOKUYO AUTOMATIC CO

    DMS-GB1-P

    OPTICAL DATA TRANSMITTER, PARALLEL I/O, WITH LIGHT-PROJECTING AMOUNT ADJUSTER, TRANSMISSION DISTANCE: 0-.6M, HEAD-ON/SIDE-ON TRANSMISSION DIRECTIONS, 8 BIT/8 BIT I/O, 24 VDC
    ✓ IN STOCK!
    £318.36 Price with VAT: £382.04 Buy Surplus As Low As £184.70 Price with VAT: £221.65
    £184.70 Price with VAT: £221.65
    HOKUYO AUTOMATIC CO DMS-HF1B-02

    HOKUYO AUTOMATIC CO

    DMS-HF1B-02

    SERVO SENSOR, PARALLEL TYPE, DATA TRANSMISSION DEVICE WITH INFRARED RAY
    ✓ IN STOCK!
    £314.87 Price with VAT: £377.85 Buy Surplus As Low As £226.71 Price with VAT: £272.05
    £226.71 Price with VAT: £272.05
    HOKUYO AUTOMATIC CO DMS-HB1-P

    HOKUYO AUTOMATIC CO

    DMS-HB1-P

    OPTICAL DATA TRANSMISSION DEVICE, 8-BIT, SIDE-ON, 1 M, TRANSMISSION DISTANCE, 10-30 VDC, 2 M CABLE
    ✓ IN STOCK!
    £307.93 Price with VAT: £369.51 Buy Surplus As Low As £177.07 Price with VAT: £212.49
    £177.07 Price with VAT: £212.49
    HOKUYO AUTOMATIC CO IDS-311

    HOKUYO AUTOMATIC CO

    IDS-311

    PHOTOELECTRIC SENSOR,
    £292.72 Price with VAT: £351.27 Buy Surplus As Low As £175.63 Price with VAT: £210.76
    £175.63 Price with VAT: £210.76
    Repair Yours £151.14 Price with VAT: £181.36
    HOKUYO AUTOMATIC CO DMS-HB2-V

    HOKUYO AUTOMATIC CO

    DMS-HB2-V

    DMS-HB2-V
    £272.80 Price with VAT: £327.36 Buy Surplus As Low As £163.98 Price with VAT: £196.78
    £163.98 Price with VAT: £196.78
    Repair Yours £151.14 Price with VAT: £181.36
    HOKUYO AUTOMATIC CO DMS-GA1-V

    HOKUYO AUTOMATIC CO

    DMS-GA1-V

    OPTICAL DATA TRANSMISSION, 1 METER RANGE, 2 METER CABLE, 24VDC
    ✓ IN STOCK!
    £360.96 Price with VAT: £433.15 Buy Surplus As Low As £151.89 Price with VAT: £182.27
    £151.89 Price with VAT: £182.27
    Repair Yours £200.00 Price with VAT: £240.00
    HOKUYO AUTOMATIC CO DMS-HA1-E

    HOKUYO AUTOMATIC CO

    DMS-HA1-E

    SERVO SENSOR, PARALLEL TYPE, DATA TRANSMISSION DEVICE WITH INFRARED RAY
    £264.49 Price with VAT: £317.39 Buy Surplus As Low As £159.45 Price with VAT: £191.34
    £159.45 Price with VAT: £191.34
    HOKUYO AUTOMATIC CO DMH-HB2

    HOKUYO AUTOMATIC CO

    DMH-HB2

    OPTICAL DATA TRANSMISSION DEVICE, PARALLEL TYPE, 8-BIT, 3M TRANSMISSION DISTANCE, HALF-DUPLEX 2-WAY, 7MSEC TRANSMISSION SPEED, 18-30VDC, 100MA MAX
    £244.09 Price with VAT: £292.90 Buy Surplus As Low As £122.42 Price with VAT: £146.91
    £122.42 Price with VAT: £146.91
    Repair Yours £151.14 Price with VAT: £181.36
    HOKUYO AUTOMATIC CO DMS-HB1-V

    HOKUYO AUTOMATIC CO

    DMS-HB1-V

    UNIT
    £240.31 Price with VAT: £288.37 Buy Surplus As Low As £144.34 Price with VAT: £173.20
    £144.34 Price with VAT: £173.20
    HOKUYO AUTOMATIC CO DMC-GB1

    HOKUYO AUTOMATIC CO

    DMC-GB1

    DISCONTINUED BY MANUFACTURER, OPTICAL DATA TRANSMISSION DEVICE
    £218.91 Price with VAT: £262.69 Buy Surplus As Low As £130.51 Price with VAT: £156.62
    £130.51 Price with VAT: £156.62
    Repair Yours £151.14 Price with VAT: £181.36
    HOKUYO AUTOMATIC CO PB1-N

    HOKUYO AUTOMATIC CO

    PB1-N

    PROXIMITY SWITCH RECEIVER/TRANSMITTER
    £208.57 Price with VAT: £250.28 Buy Surplus As Low As £125.44 Price with VAT: £150.53
    £125.44 Price with VAT: £150.53
    Repair Yours £151.14 Price with VAT: £181.36
    HOKUYO AUTOMATIC CO DMSHA1V

    HOKUYO AUTOMATIC CO

    DMSHA1V

    OPTICAL DATA TRANSMISSION DEVICE, PARALLEL TYPE, WITH INFRARED RAY
    £204.71 Price with VAT: £245.65 Buy Surplus As Low As £120.59 Price with VAT: £144.71
    £120.59 Price with VAT: £144.71
    HOKUYO AUTOMATIC CO AC-NKB5-DC24V

    HOKUYO AUTOMATIC CO

    AC-NKB5-DC24V

    COUNTER
    £192.70 Price with VAT: £231.24 Buy Surplus As Low As £115.62 Price with VAT: £138.74
    £115.62 Price with VAT: £138.74
    Repair Yours £151.14 Price with VAT: £181.36
    HOKUYO AUTOMATIC CO DMS-HA1-P

    HOKUYO AUTOMATIC CO

    DMS-HA1-P

    TRANSMISSION DEVICE, OPTICAL DATA, PROJECTOR, 1 METER TRANSMISSION DISTANCE, 10-30VDC, 2M CABLE
    ✓ IN STOCK!
    £246.62 Price with VAT: £295.94 Buy Surplus As Low As £143.00 Price with VAT: £171.60
    £143.00 Price with VAT: £171.60
    HOKUYO AUTOMATIC CO DC-SB2-N

    HOKUYO AUTOMATIC CO

    DC-SB2-N

    COUNTER 2DIGIT W/A&B MOUNTING BRACKET 24VDC
    £176.83 Price with VAT: £212.20 Buy Surplus As Low As £105.80 Price with VAT: £126.96
    £105.80 Price with VAT: £126.96
    Repair Yours £151.14 Price with VAT: £181.36
    HOKUYO AUTOMATIC CO AC-NSZ-CNZ8060

    HOKUYO AUTOMATIC CO

    AC-NSZ-CNZ8060

    COUNTER AUTO 100VAC 20COUNT/SEC 1/100HK
    £168.52 Price with VAT: £202.22 Buy Surplus As Low As £101.26 Price with VAT: £121.51
    £101.26 Price with VAT: £121.51
    Repair Yours £151.14 Price with VAT: £181.36
    HOKUYO AUTOMATIC CO PK7

    HOKUYO AUTOMATIC CO

    PK7

    SENSOR
    £152.65 Price with VAT: £183.18 Buy Surplus As Low As £91.44 Price with VAT: £109.73
    £91.44 Price with VAT: £109.73
    Repair Yours £151.14 Price with VAT: £181.36
    HOKUYO AUTOMATIC CO DM-GA1

    HOKUYO AUTOMATIC CO

    DM-GA1

    OPTICAL DATA TRANSMISSION DEVICE
    £132.25 Price with VAT: £158.69 Buy Surplus As Low As £79.35 Price with VAT: £95.22
    £79.35 Price with VAT: £95.22
    HOKUYO AUTOMATIC CO AC-NSZ-NS8039

    HOKUYO AUTOMATIC CO

    AC-NSZ-NS8039

    COUNTER AUTO 24VDC 20COUNT/SEC 1/100HK
    £163.59 Price with VAT: £196.31 Buy Surplus As Low As £78.64 Price with VAT: £94.37
    £78.64 Price with VAT: £94.37
    Repair Yours Contact Us
    HOKUYO AUTOMATIC CO AC-NSZ-CNZ8038

    HOKUYO AUTOMATIC CO

    AC-NSZ-CNZ8038

    COUNTER AUTO 24VDC 20COUNT/SEC 1/100HK
    £163.59 Price with VAT: £196.31 Buy Surplus As Low As £78.64 Price with VAT: £94.37
    £78.64 Price with VAT: £94.37
    Repair Yours Contact Us
    HOKUYO AUTOMATIC CO PX7-CR

    HOKUYO AUTOMATIC CO

    PX7-CR

    PHOTOELECTRIC SENSOR 12/24V
    £118.30 Price with VAT: £141.96 Buy Surplus As Low As £59.53 Price with VAT: £71.44
    £59.53 Price with VAT: £71.44
    Repair Yours Contact Us
    HOKUYO AUTOMATIC CO FG-51C-03

    HOKUYO AUTOMATIC CO

    FG-51C-03

    PHOTOELECTRIC, 12-24VDC, NPN
    ✓ IN STOCK!
    £150.51 Price with VAT: £180.61 Buy Surplus As Low As £39.87 Price with VAT: £47.84
    £39.87 Price with VAT: £47.84
    Repair Yours Contact Us
    HOKUYO AUTOMATIC CO FC-5C-03

    HOKUYO AUTOMATIC CO

    FC-5C-03

    PHOTOELECTRIC, 12-24VDC, NPN
    ✓ IN STOCK!
    £150.51 Price with VAT: £180.61 Buy Surplus As Low As £39.87 Price with VAT: £47.84
    £39.87 Price with VAT: £47.84
    Repair Yours Contact Us
    HOKUYO AUTOMATIC CO PS2-N

    HOKUYO AUTOMATIC CO

    PS2-N

    PHOTOELECTRIC KIT W/PS2-E PROJECTOR AND PS2-FN RCV
    £112.60 Price with VAT: £135.12 Buy Surplus As Low As £68.01 Price with VAT: £81.61
    £68.01 Price with VAT: £81.61
    Repair Yours Contact Us
    HOKUYO AUTOMATIC CO PVF-CR

    HOKUYO AUTOMATIC CO

    PVF-CR

    PHOTOELECTRIC SENSOR, SUPPLY; 10 VDC OT 30 DVC, 25MA, RED LED, DIN RAIL MOUNT, NPN OPEN-COLLECTOR OUTPUT
    ✓ IN STOCK!
    £142.13 Price with VAT: £170.56 Buy Surplus As Low As £78.39 Price with VAT: £94.07
    £78.39 Price with VAT: £94.07
    Repair Yours Contact Us
    HOKUYO AUTOMATIC CO LEX-307C

    HOKUYO AUTOMATIC CO

    LEX-307C

    LASER SENSOR 10/30V 300MM 4.7MW
    £104.28 Price with VAT: £125.14 Buy Surplus As Low As £52.14 Price with VAT: £62.57
    £52.14 Price with VAT: £62.57
    HOKUYO AUTOMATIC CO FH-351

    HOKUYO AUTOMATIC CO

    FH-351

    WIRE OPTIC FIBER 16FT W/ PLUG FHM-101 AND AMPLIFIER
    £99.75 Price with VAT: £119.70 Buy Surplus As Low As £50.63 Price with VAT: £60.76
    £50.63 Price with VAT: £60.76
    Next
    1 2 3 4