product - range

Day Rate - £1-£4

A large range of accessories including cables, tripods, adaptors, mounting plates and connectors are available to help you meet most measurement situations. Please contact our sales staff if you need additional information on the accessories available.


  • NOR-1408/5 - Microphone Extension cable, 7 pin Lemo, 5M

  • CA-4007 - Heavy duty tripod

  • NOR-1307 - Tripod adapter plate for Nor-116 / 118

  • CA-4005 - Medium microphone boom & Stand

  • MTG-TA202 - Dehumidify for Nor-1212 microphone enclosure

  • CA-4531/5 - Microphone extension cable, TNC, 5M (Suitable for use with Nor-13x and Nor-1212)

product - ca-1010

Day Rate - £1

BNC to BNC Cable - 20 metre

product - ca-1011

Day Rate - £1

BNC to BNC Cable - 5 metre

product - nor-1408a/25

Day Rate - £2.50

25m Microphone Cable

product - nor1408a/50x02

Day Rate - £5

50m Microphone Cable c/w drum

product - nor-1441-1530

Day Rate - £1

G3110 modem cable

Other Equipment


product - ca-1317l1

Day Rate - £5


  • CA-1317L1 Environment Case

  • CA-1008L Fused Triplex Battery Cable

  • CA-5500\CH1 12v Battery Charger

  • CA-5500 x 2 Lithium Battery

  • CA-DOCS Hire Documentation

Please Note:

We do not recommend that these equipment is left unattended for more that seven days as environmental conditions may cause the meter to stop operating.

The following items are also available to enhance the measurement process, if required, these items must be specified separately when placing your order:

  • CA-5500 - Additional 12 volt Lithium Battery

  • CA-5500\CH2 - Fast battery charger

product - gras-41al

Day Rate - £10

Outdoor Microphone with Tripod

product - gras-12al

Day rate - £4

IEPE Power Supply


product - ca-4008

Day Rate - £15

  • 10M Telescopic mast

  • For use with noise monitoring microphones and wind anemometer


  • CA-4008BA - Main Stand - 7.5M

  • CA-4004EX - Extension 2.5M

  • CA-4008AN - 6 x Ground Anchors

  • CA-4008GR - 3 x 10m Guy Ropes (Red)

  • CA-4008GB - 3 x 15m Guy Ropes (Blue)

  • CA-DOCS - Instruction Documents

CA-4008ANC Soft Soil Anchor Kit

Kit Contains:

A set of three twist type long anchors for sandy/soft/waterlogged ground installations.

  • CA-4008TA - 3 x Soft Soil twist anchors

  • CA-4008CB - Canvas Bag

product - ca-1329

Day Rate - £2

Microphone mounting bracket

product - ca-3000

Day Rate - £3

CD Player and Loudspeaker System for use with Nor118 RTA

product - ca-3010

Day Rate - £12

CA-3010 Loudspeaker unit c/w

product - ca-5520

Day Rate - £5

1 Lithium Battery pack 40Ah

product - nor1450

Day RATE - £2

ICP Power Supply

product - mmf-230

Day Rate - £1

Triaxial Mounting block

product - ca-ext4w

Day Rate - £2

Site Splitter Box

product - gra-am0089

Day Rate - £3

Large windscreen for GRAS 41AL

Weather Stations


product - ca-6080

Day Rate - £22

CA-6080 Wind Sensor kit:

  • Ultrasonic anemometer to provide wind speed and direction data

  • Real-time display unit, with a digital data logger for storing the data on removable SD data cards. 


  • Dav-Col Humidity & Rain Sensor unit

  • Dav-Dis Data Display unit & USB Data cable

  • CA-1318 environmental case for the display unit

  • Dav-Ano Anemometer and Wind Vane, compass & 10M cable

  • Dav-STD 2M Tripod stand

  • CA-Tran Transit Case

  • Functions Wind speed, direction, rainfall, humidity and data logging system

Additional Options:

The following items are also available to enhance the measurement process, if required, these items must be specified separately when placing your order:

  • CA-4008 - Telescopic 10M mast

Artificial Ear & Mouth


product - 43AA

Day Rate - £29

This kit may be configured to provide ear simulators for the testing of a wide range of circum-, supra- and intra-aural audio headsets. 


product - 44aa

Day Rate - £10

The Gras-44AA Mouth simulator is a sound source that simulates the sound field around the human mouth at close quarters and complies with the standards IEE 269 and 661 as well as ITU-T Rec. P51.

Important information:

  • Minimum hire period - 5 days (3 day minimum hire period for Building Acoustic kits)

  • Hire charged from the day of delivery

  • Delivery by 10:30AM

  • Collection available

  • Min £100 hire (not including carriage)


  • CA-ANE Anemometer unit c/w pole mounting bracket

  • CA-DIS Display Unit

  • CA-LOG Data logger

  • CA-CHA 12V Charger

  • CA-BAT 12V 22A Lithium Battery

  • CA-SOF Data Reporting Software

  • CA-Tran Transit Case

The control equipment is housed in the environmental case and the sensor is supplied with a 12m cable. This enables the installation of the control equipment in a safe and easily accessible location away from the measurement sensor.

Additional Options:

The following items are also available to enhance the measurement process, if required, these items must be specified separately when placing your order.

  • CA-4008 - Telescopic 10M mast

  • CA-4008ANC - Soft Soil Anchor Kit


  • Gras-40AG - Microphone Capsule

  • Gras-26AC - Preamplifier Unit

  • Gras-RA0039 - IEC 6cc Ear Simulator

  • Gras-RA0052 - Test Jig

  • Gras-GR0338 - Plastic Removable Ring

  • Gras-GR0402 - Rubber Removable Ring

  • Gras-RA0001 - Adapter

  • Gras-GR0339 - Mounting Plate

  • Gras-GR0337 - Mounting Plate

  • Gras-Accs - Case, Allen Key & Hire documents

The basic configuration is the GRAS-43AA Ear Simulator which is suitable for testing circum- and supra-aural headsets; it may also be reconfigured as the GRAS-43AC Occluded Ear Simulator for testing intra-aural devices. An ear and cheek simulator is also included to allow reconfiguration as the GRAS-43AG for testing all types of headsets.

The internal preamplifier may be connected directly to any of our hire sound level meters or the GRAS-12AA Microphone Power Supply and Conditioning Amplifier. Alternatively, it may be connected to other sound level meters or analysers having Lemo 1B connectors and appropriate power supplies.

For the GRAS-43AC Ear simulator kit contains:

  • Gras-RA0045 - IEC 2cc Ear Simulator (with 40AG Microphone capsule fitted)

For the GRAS-43AF Ear simulator kit contains:

  • Gras-RA0150 - Cheek simulator plate for GRAS-43AF

  • Gras-KB0065 - Large right pinna (55 Shore 00)


  • Gras-44AA - Mouth Simulator

  • Gras-RA0106 - Standard Lip Ring

  • Gras-RA0104 - Jig for CCITT P51 Calibration

  • Gras-RA0105 - Jig for IEEE 269 Calibration

  • CA-9886 - Power supply unit c/w mains cable

  • Gras-Accs - Case & Hire documents

Accessories for use with this unit are:

  • CA-4002 - Mounting Tripod with 1/4" to 3/8" adaptor ring.

  • CCITT - For Setting the level to CCITT P51 standard - GRAS-26AC Preamplifier (for Norsonic Sound Level Analysers) and GRAS-40AP or 40AG Precision pressure measurement microphone.

  • IEEE - For Setting the level to IEEE 269 standard - GRAS-26AC Preamplifier (for Norsonic Sound Level Analysers) and GRAS-40BF Precision pressure measurement microphone.

Please note:

  • The Gras-26AC Preamplifier and CA-4002 Tripod are available for hire from our hire stock.

  • The Gras-40AP / 40AG / 40BF are available for purchase only.