Guernsey Sea Farms

 The OYSTER underwater TEMPERATURE LOGGER

Dec 99 update : see an amazing lost and found story

WHAT IS IT ?

An electronic temperature recorder about the same size as an oyster and robust enough to be left inside oyster bags. It will record the temperature every 30 minutes for nearly six months. Or every hour for a year.  All you have to do is make a note of the date and time of any ‘event’ (such as putting it on site) which you might want to identify later on the temperature graph

WHAT FOR ?

This logger is designed specifically to measure sea water temperatures. However many other applications are possible: Fish in transit. Fridges. Delivery vans. Cold stores. Incubators. Purification tanks. Broodstock conditioning. Packaging trials...Think about it !

SPECIFICATION

Waterproof to 30metres depth
60mm long x 50mm diameter, 120 grams weight
Temperature range: 0oC to 40oC. Accuracy +/- 0.5oC
Recording frequency every 30 minutes for 164 days.
Time lag: 15 minutes to register 90% of any temperature change

OUR SERVICE

We are offering a service where we loan out the loggers and you pay for the rental and production of the temperature graphs. (See example below) We offer a one-trip service up to one month, or six monthly or annual for longer term monitoring . We can arrange to send replacement loggers to arrive before the end of the recording period to ensure uninterrupted data. We can work with lunar months or produce special graphs, such as degree-days, to customers individual requirements.

GUARANTEE

We aim to offer an efficient service. We will despatch your logger within 7 days of receiving your order. We will post (or fax on request) the temperature graph within 48 hours of return of logger otherwise we will refund the charge. If the logger fails to record for any reason we will provide a free replacement service. Users may return loggers at any time for refund of deposit, subject to £20.00 minimum ‘one-trip’ charge.

CONTACT

Mark Dravers at above address - preferably by fax or post
or email: (please use the enquiry form)

 

 

The OYSTER underwater TEMPERATURE LOGGER

 

PRICE LIST JANUARY 1998

 

Monthly service

£20.00

fee for up to one month + £90.00 refundable deposit

Six monthly

£90.00

combined fee and deposit

Annual service

£130.00

combined fee and deposit

Includes monthly temperature graphs. Additional or specialised graphs from £5.00 each

CONDITIONS: Payment in advance please with order form below or official order number.

Invoice for next period will be sent out 14 days in advance giving option to continue logging or have deposit returned(monthly service only). Deposit is against loss or damage. Multiple loggers to a single customer may be covered by one deposit at our discretion. We recommend you use a postal service which includes insurance to the value of £150.00. Loggers not returned within 2 weeks after the end of service will be subject to overdue rental at £5/week. Note that no VAT should be payable since the loggers remain our property.

 

 

ORDER FORM - ( Please print and fax. Or cut and paste into email )

Name:

Tel:

Address:

Fax:

Contact name:

Your order ref.

Monthly or 6 months ?

Date required 1

Comment or site name 2

Amount £stg 3

 

 

 

£

 

 

 

£

 

 

 

£

 

 

Add deposit (monthly only)

£

 

 

Total remittance enclosed

£

Please make cheques payable to Guernsey Sea Farms Limited

Notes: 1 The logger will be set to start recording on this date but will be sent out earlier.

2 This will appear as the title on the temperature graph.

3 For other currencies please apply appropriate exchange rate and add £5 bank charges

 

 

EXAMPLES OF TEMPERATURE LOGGER DATA

 

Return to Guernsey Sea Farms home page