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    Results 1-50 of 231.
    GREYSTONE WP-D-103-LCD

    GREYSTONE

    WP-D-103-LCD

    DISCONTINUED BY MANUFACTURER, PRESSURE TRANSMITTER, DIFFERENTIAL, LCD, 20/40/100/200PSI, WET/WET, REPLACED BY DPB03S15
    Buy Surplus As Low As $2,100.00
    $2,100.00
    Repair Yours $1,743.00
    GREYSTONE DPB02S15

    GREYSTONE

    DPB02S15

    DIFFERENTIAL PRESSURE TRANSMITTER, 100 PSI MAX
    ✓ IN STOCK!
    $1,701.00 Buy Surplus As Low As $1,293.00
    $1,293.00
    Repair Yours $848.00
    GREYSTONE WPD-102-VB

    GREYSTONE

    WPD-102-VB

    DISCONTINUED BY MANUFACTURER, PRESSURE TRANSMITTER / DIFFERENTIAL, 10 / 20 / 50 / 100 PSI / SELECTABLE RANGE, WITH VALVE AND BRACKET ASSEMBLY, W/O LCD DISPLAY, REPLACED BY DPB023VB
    Buy Surplus As Low As $780.00
    $780.00
    Repair Yours $648.00
    GREYSTONE DPB023VB

    GREYSTONE

    DPB023VB

    DIFFERENTIAL PRESSURE TRANSMITTER, WITH 3-WAY VALVE AND BRACKET, POLYCARBONATE ENCLOSURE, WITH HINGED AND GASKETED COVER, 10 / 20 / 50 AND 100 PSI RANGES, REPLACES WPD-102-VB
    $1,247.00 Buy Surplus As Low As $749.00
    $749.00
    Repair Yours $622.00
    GREYSTONE WP-D-107-LCD

    GREYSTONE

    WP-D-107-LCD

    DISCONTINUED BY MANUFACTURER, PRESSURE TRANSDUCER / DIFFERENTIAL, WET TO WET, 1 / 2 / 5 / 10 BAR / ADJUSTABLE RANGE, WITH BACKLIT LCD
    Buy Surplus As Low As $668.00
    $668.00
    Repair Yours $555.00
    GREYSTONE DPF04A30

    GREYSTONE

    DPF04A30

    DIFFERENTIAL PRESSURE TRANSMITTER, HVAC SENSORS, DP-3VB SERIES, ENERGY SYSTEMS, 0 TO 50 / 100 / 250 / 500 PSI RANGES, ARMOURED CABLE, 3 M / 10 FT LENGTH, M16 THREAD ADAPTER AND CABLE GLAND F ...
    $1,034.25 Buy Surplus As Low As $621.00
    $621.00
    Repair Yours $515.43
    GREYSTONE RH310A02C2E3

    GREYSTONE

    RH310A02C2E3

    GREYSTONE HUMIDITY TRANSDUCER, O.S.A, 2%, 0/+100 C, 0-10VDC
    $690.97 Buy Surplus As Low As $415.02
    $415.02
    GREYSTONE WD-100-25

    GREYSTONE

    WD-100-25

    GREYSTONE,WD-100-25,WD10025,SENSOR,WATER DETECTOR,120VAC/30VDC 5A FORM C RELAY,MOISTURE SENSING CABLE,25FT
    $1,135.24 Buy Surplus As Low As $568.63
    $568.63
    Repair Yours $529.00
    GREYSTONE WP-G-103-LCD

    GREYSTONE

    WP-G-103-LCD

    DISCONTINUED BY MANUFACTURER, PRESSURE TRANSDUCER, WP SERIES, LCD, 4-20MA, 28V, 200PSI, NEMA 4X, IP65
    Buy Surplus As Low As $520.15
    $520.15
    Repair Yours $428.00
    GREYSTONE DPB03S15

    GREYSTONE

    DPB03S15

    PRESSURE SENSOR, DIFFERENTIAL, 0 TO 25 50 120 AND 250 PSI RANGES, FT-6 PLENUM RATED, 1.5M (5'), REPLACES WP-D-103-LCD
    $708.00 Buy Surplus As Low As $425.00
    $425.00
    Repair Yours $353.00
    GREYSTONE AVDTIR

    GREYSTONE

    AVDTIR

    DISCONTINUED BY MANUFACTURER, DUCT AIRFLOW, TRANSMITTER, 0-400/2000/4000FPM, 32-122F, ADJUSTABLE RELAY
    ✓ IN STOCK!
    Buy Surplus As Low As $421.07
    $421.07
    Repair Yours $388.32
    GREYSTONE CDD4A100

    GREYSTONE

    CDD4A100

    CARBON DIOXIDE DETECTOR, CO2 SPACE, CDD4 SERIES, 0-2000 PPM, 20-28 VAC, 20-28 VDC, HUMIDITY RANGE: 0-95 % RH
    ✓ IN STOCK!
    $524.19 Buy Surplus As Low As $399.96
    $399.96
    Repair Yours $252.00
    GREYSTONE WP-D-101

    GREYSTONE

    WP-D-101

    DISCONTINUED BY MANUFACTURER, PRESSURE TRANSDUCER, DIFFERENTIAL, WET, 5/10/25/50 PSI, SELECTABLE RANGE, W/O LCD DISPLAY
    ✓ IN STOCK!
    Buy Surplus As Low As $399.48
    $399.48
    Repair Yours $300.00
    GREYSTONE LTC2M

    GREYSTONE

    LTC2M

    FREEZE STAT, DPDT, MANUAL RESET, FROST PROTECTION, UL APPROVED
    $636.00 Buy Surplus As Low As $382.00
    $382.00
    Repair Yours $318.00
    GREYSTONE WLDC100C010

    GREYSTONE

    WLDC100C010

    WATER DETECTOR, 1 RELAY, 10 M / 32.8 FT CONDUCTIVITY CABLE LENGTH, WITHOUT LEADER CABLE
    $623.00 Buy Surplus As Low As $374.00
    $374.00
    GREYSTONE TE500B12E21E6

    GREYSTONE

    TE500B12E21E6

    DISCONTINUED BY MANUFACTURER 02/17/2023, DUCT TEMPERATURE TRANSMITTER, 12IN, 24VDC/VAC, 0-10VDC OUTPUT, -50/50 C
    Buy Surplus As Low As $345.00
    $345.00
    GREYSTONE Q6-CO-250P-0-A-G

    GREYSTONE

    Q6-CO-250P-0-A-G

    CARBON MONOXIDE TRANSMITTER, QEL BRAND, ANALOG, ELECTROCHEMICAL, 0-250 PPM, 24 VAC/VDC, LCD DISPLAY, 3 ON-BOARD USER-PROGRAMMABLE RELAYS, REMOVABLE TERMINAL BLOCKS, INT BUZZER / 3 TONES, UL9 ...
    $573.00 Buy Surplus As Low As $344.00
    $344.00
    Repair Yours $286.00
    GREYSTONE GPB03S15

    GREYSTONE

    GPB03S15

    GAGE PRESSURE TRANSMITTER, POLYCARBONATE WITH HINGED AND GASKETED COVER
    $554.00 Buy Surplus As Low As $333.00
    $333.00
    Repair Yours $277.00
    GREYSTONE TE500C12C2A1E6

    GREYSTONE

    TE500C12C2A1E6

    DISCONTINUED BY MANUFACTURER, IMMERSION TEMPERATURE TRANSMITTER, ABS 6IN -50-50C, 0-10VDC, SPRING LOADED
    ✓ IN STOCK!
    Buy Surplus As Low As $332.14
    $332.14
    GREYSTONE AIR4100

    GREYSTONE

    AIR4100

    DUCT AIR QUALITY MONITOR, AIR4 SERIES, 0-2000 PPM
    $528.00 Buy Surplus As Low As $317.00
    $317.00
    Repair Yours $264.00
    GREYSTONE SPC06V05

    GREYSTONE

    SPC06V05

    TEMPERATURE TRANSMITTER, /W SETPOINT CONTROL, ROOM HUMIDITY
    $510.00 Buy Surplus As Low As $306.00
    $306.00
    GREYSTONE ETP-9510-E-G

    GREYSTONE

    ETP-9510-E-G

    PNEUMATIC TRANSDUCER, 24 VDC, 30 PSIG MAX AIR SUPPLY, ENCLOSURE / GAUGE, CE & ROHS APPROVED
    $495.00 Buy Surplus As Low As $297.00
    $297.00
    GREYSTONE SPC04V03

    GREYSTONE

    SPC04V03

    HUMIDITY/TEMPERATURE TRANSMITTER C/W SETPOINT CONTROL, MICROPROCESSOR BASED, 24V AC/DC, TEMP RANGE 32~95 DEG F, NET WIEGHT 3.68 OZ
    $481.00 Buy Surplus As Low As $289.00
    $289.00
    Repair Yours $234.00
    GREYSTONE RH310A03C2A3

    GREYSTONE

    RH310A03C2A3

    TEMPERATURE TRANSMITTER 24VAC 4-20MA 0-100C
    $467.00 Buy Surplus As Low As $280.00
    $280.00
    Repair Yours $300.00
    GREYSTONE PGS100A12A1A

    GREYSTONE

    PGS100A12A1A

    PRESSURE TRANSMITTER, COMPACT, 1/4 NPT, 2 FOOT CABLE, 24 VDC
    $466.00 Buy Surplus As Low As $280.00
    $280.00
    Repair Yours $300.00
    GREYSTONE PGS100A13A1A

    GREYSTONE

    PGS100A13A1A

    PGS100A13A1A,GREYSTONE, GAUGE PRESSURE TRANSDUCER, 24 VDC LOOP POWERED 4-20MA OUTPUT, 0-25 PSIG, 0 TO 172.4 KPA
    $467.00 Buy Surplus As Low As $280.00
    $280.00
    GREYSTONE 560D-307

    GREYSTONE

    560D-307

    PRESSURE TRANSDUCER WET TO WET 0-200PSI 4-20MA 24V
    Buy Surplus As Low As $276.00
    $276.00
    Repair Yours $300.00
    GREYSTONE RH310A03C2E3

    GREYSTONE

    RH310A03C2E3

    HUMIDITY/TEMPERATURE SENSOR, 3% OSA, HUMIDITY RANGE 0 TO 100% RH, TEMPERATURE RANGE 32~212 DEG F, 18~30 VDC;15~26 VAC INPUT, 0~10 VDC OUTPUT
    $452.48 Buy Surplus As Low As $271.69
    $271.69
    GREYSTONE HTOSB312E003

    GREYSTONE

    HTOSB312E003

    TEMPERTURE TRANSMITTER, 3%, DUAL 0-10 VDC
    $438.00 Buy Surplus As Low As $263.00
    $263.00
    Repair Yours $300.00
    GREYSTONE TXDRA12GA006

    GREYSTONE

    TXDRA12GA006

    ENERGY SYSTEMS HVAC SENSOR, TXDR SERIES TEMPERATURE TRANSMITTER, DUCT
    $307.82 Buy Surplus As Low As $184.69
    $184.69
    GREYSTONE RH200A03

    GREYSTONE

    RH200A03

    DISCONTINUED BY MANUFACTURER, TEMPERATURE AND HUMIDITY DUCT SENSOR
    ✓ IN STOCK!
    Buy Surplus As Low As $252.30
    $252.30
    GREYSTONE ESF-35-2

    GREYSTONE

    ESF-35-2

    DISCONTINUED BY MANUFACTURER, ELECTRONIC AIRFLOW TRANSDUCER, ESF-35 SERIES, 24 VAC, 16-32 VDC, 50/60HZ, OUTPUT SIGNAL / 0-10 VDC / 4-20 MA, OUTPUT RELAY / 6 AMP / 250 V
    Buy Surplus As Low As $248.71
    $248.71
    GREYSTONE RH300A02-12V05

    GREYSTONE

    RH300A02-12V05

    DISCONTINUED BY MANUFACTURER, HUMIDITY TRANSDIUCER, OSA 2PERCENT, 12VDC, 0-5 VDC OUT, PVC BOX
    $466.00 Buy Surplus As Low As $233.00
    $233.00
    GREYSTONE ETP-9500

    GREYSTONE

    ETP-9500

    PNEUMATIC TRANDUCER, ETP SERIES, ANALOG TO PRESSURE, 4.20 MA, 0-10 VDC, 3-WIRE
    ✓ IN STOCK!
    $275.42 Buy Surplus As Low As $229.52
    $229.52
    GREYSTONE TSDFA12L

    GREYSTONE

    TSDFA12L

    TEMPERATURE SENSOR, RTD TYPE, 24 FT PROBE, NEMA 4X / IP65 ENCLOSURE, POLYCARBONATE HOUSING
    $366.00 Buy Surplus As Low As $220.00
    $220.00
    Repair Yours $200.00
    GREYSTONE TXDRA12FA001

    GREYSTONE

    TXDRA12FA001

    RIGID DUCT AVERAGE TEMPERATURE TRANSMITTER, ABS WITH HINGED & GASKETED COVER, 10,00 OHM PLATINUM, IEC 751, 385 ALPHA, 450 MM PROBE, 4-20MA, 0-35 DEGREES C
    $261.47 Buy Surplus As Low As $157.17
    $157.17
    GREYSTONE PGS100A5A1A

    GREYSTONE

    PGS100A5A1A

    PRESSURE TRANSDUCER, PGS SERIES, GAUGE TYPE, 0.25 % ACCURACY, RANGE / -40 TO 185 DEGREE F, 1/4-18 NPT / FEMALE, 30 PSI MAX, 4-20 MA, 9-30 VDC, 2 FT WIRE LENGTH, CABLE / JACKETED / SHIELDED / ...
    ✓ IN STOCK!
    $385.93 Buy Surplus As Low As $210.13
    $210.13
    Repair Yours $300.00
    GREYSTONE 560D-37

    GREYSTONE

    560D-37

    PRESSURE TRANSDUCER WET TO WET 100-500PSI 4-20MA
    $350.00 Buy Surplus As Low As $210.00
    $210.00
    Repair Yours $300.00
    GREYSTONE WD-100-50

    GREYSTONE

    WD-100-50

    WATER DETECTOR, CONTACT CLOSURE, FORM C RELAY RATED @ 5 AMPS 120VAC/30VDC (RESISTIVE LOAD), C/W 50' MOISTURE SENSING CABLE.
    $343.40 Buy Surplus As Low As $206.04
    $206.04
    GREYSTONE LPB06X

    GREYSTONE

    LPB06X

    LOW PRESSURE TRANSMITTER, SENSOR TYPE: PIEZORESISTIVE DIFFERENTIAL PRESSURE, RESPONSE TIME: 250MS
    $245.53 Buy Surplus As Low As $147.76
    $147.76
    Repair Yours $200.00
    GREYSTONE TE500F21A6

    GREYSTONE

    TE500F21A6

    DISCONTINUED BY MANUFACTURER, TEMPERATURE TRANSMITTER, OUTDOOR
    Buy Surplus As Low As $195.94
    $195.94
    GREYSTONE TE500AS121A1

    GREYSTONE

    TE500AS121A1

    SURFACE TRANSMITTER, STAINLESS STEEL, 24 V AC/DC, 4-20 MA, 0/+35 C
    ✓ IN STOCK!
    $337.67 Buy Surplus As Low As $186.62
    $186.62
    GREYSTONE NTRCLTPSF

    GREYSTONE

    NTRCLTPSF

    TEMPERATURE SENSOR, LCD, NT SERIES, BACNET OR MODBUS OUTPUT, 32-122F
    $300.00 Buy Surplus As Low As $181.00
    $181.00
    Repair Yours $200.00
    GREYSTONE ETP-9520

    GREYSTONE

    ETP-9520

    PNEUMATIC TRANSDUCER, 2-WIRE, 4-20 MA, 24-30 VAC/VDC, 1 W, 30 PSI
    $292.90 Buy Surplus As Low As $176.75
    $176.75
    Repair Yours $300.00
    GREYSTONE TE200FDE24D

    GREYSTONE

    TE200FDE24D

    DISCONTINUED BY MANUFACTURER, MULTI-POINT FLEX DUCT, ROUND ABS, GASKETED COVER, NTC THERMISTOR, 24' PROBL, 9 X SENSORS
    ✓ IN STOCK!
    Buy Surplus As Low As $174.52
    $174.52
    Repair Yours $300.00
    GREYSTONE LPB00S

    GREYSTONE

    LPB00S

    LOW PRESSURE TRANSMITTER, LP SERIES, DISPLAY, 4 WC, STATIC PROBE, SCREW TERMINAL, IP65, 4 / 2 / 1 / 0-4 / 0-2 / 0-1 INCH WC, HINGED GASKETED COVER, POLYCARBONATE
    $289.00 Buy Surplus As Low As $174.00
    $174.00
    Repair Yours $200.00
    GREYSTONE Q6R-NO2-10P-0-A-G

    GREYSTONE

    Q6R-NO2-10P-0-A-G

    REMOTE SMART GAS TRANSMITTER NITROGEN DIOXIDE (NO2), QEL BRAND, ELECTROCHEMICAL, 0-10 PPM, 24 VAC/VDC, LCD DISPLAY, 3 ON-BOARD USER-PRG RELAYS, REMOVABLE TERMINAL BLOCKS, INTEGRAL BUZZER / 3 ...
    $288.00 Buy Surplus As Low As $173.00
    $173.00
    GREYSTONE CDD3A100RH-BL

    GREYSTONE

    CDD3A100RH-BL

    DISCONTINUED BY MANUFACTURER, CARBON DIOXIDE DETECTOR, BACNET CONCEALED LCD, BLANK
    ✓ IN STOCK!
    Buy Surplus As Low As $170.74
    $170.74
    GREYSTONE CDD3A200RH

    GREYSTONE

    CDD3A200RH

    DISCONTINUED BY MANUFACTURER, CARBON DIOXIDE DETECTOR, DUCT MOUNT W/BACNET
    ✓ IN STOCK!
    Buy Surplus As Low As $170.32
    $170.32
    GREYSTONE RH100S03I20

    GREYSTONE

    RH100S03I20

    HUMIDITY TRANSMITTER, SS, 24V, 4-20MA
    $340.00 Buy Surplus As Low As $170.00
    $170.00
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