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This thermochron review will cover its strengths and weaknesses and will cover the entire range from the DS1921G up to the DS1923.

The thermochron has now been on the market for over a decade. When it was first released it sold for under half the price of every other logger on the market. Now the price of other loggers have moved down to compete, but it still has a number of features that set it apart. There has also been a number of new models released.

The original DS1921G (our TC) introduced a range of features that are standard throughout the entire range. The small stainless steel housing provided probably the most robust housing available for any data logger. It could be used in harsh environments including wet or dirty conditions. It was incredibly small which allows it to be placed in almost any area or item that needs to be monitored.

The small size was actually a disadvantage for many users, and so the standard options of the plastic fobs to hold it have always been popular. These holders made it easier to see the unit, place it, and remove it from the reader.

The DS1921G (TC) offered a very good range (-30°C to 85°), average accuracy (1°C), and average resolution (0.5°C). It is great for monitoring temperature where large variations are expected, but not where you require precision.

The range was increased to have the DS1921H (TCH) and DS1921Z (TCZ) which provided a much reduced temperature range but with greater resolution. The TCZ has a range of -5° to 25°C with a resolution of 0.125°C and an accuracy of about 0.6°C. It is the low cost fridge model.

The DS1921 range all have 2,000 reading capacity. That’s more than sufficient for the majority of users.

The DS1922 range improved both the reading capacity and resolution. At low resolution (0.5°C) they would store 8,000 readings and at high resolution (0.0625°C) they would store 4,000 readings. The DS1922L (TCS) has the same range as the TC (-30°C to 85°C) but with the better memory and resolution. Hence it became known as our “super” model.

The DS1922 range includes two additional models that pushed the range upwards. The TCX was first and covered 0°C to 125°C (X for “eXtreme”) and the TCU then went further with 15°C to 140°C (U for “Ultra-extreme”). For monitoring temperatures over 70°C the TCX should be used, and for temperatures over 120° the TCU.

Finally the DS1923 (HC) is the temperature and humidity model.

The entire range is ideal for auditing.

They have two common weaknesses:

– Lack of indicator means that the user doesn’t know if there is a problem until they download the results. For many applications this isn’t a problem. Where it is, consider using a Logtag.

– Lack of external probes means that it can only monitor where it is. The higher temperature range, however, means that it is capable of logging temperatures in places where many other loggers can’t go

 

What is covered with our shipping insurance?

Our normal terms and conditions (like most businesses) is that you take possession the moment an order ships. If the order is lost or damaged in transit then, in theory, it’s your problem. In reality we will have a conversation and try to work out a good way to resolve the issue where we are both happy (or not too upset).

Shipping insurance is there to remove the drama. If an order is lost or damaged in transit, we will simply send out a replacement, and we will then deal with the courier directly to resolve the original problem.

Our shipping insurance also means that if an order is delayed beyond what is normal and reasonable then we will send you another shipment (stock levels permitting). Then you should receive one of them sooner, and when the second one arrives you simply Return To Sender.

How much is shipping insurance?

Shipping insurance is 5% of the cost of the goods.

Is it worth it? Practically we have had far less than 5% of shipments have problems. It is, however, what Australia Post and other couriers charge. Ultimately insurance is about peace of mind and less hassle when something does go wrong.

Shipping insurance as an option

Shipping insurance is offered as an option on all our web sites. You can select it at the checkout.

For large orders our staff may also ask if you would like shipping insurance.

If you would like shipping insurance on an order you are placing with us, just ask.

Mandatory shipping insurance

Unfortunately we have had a couple of large orders not make it and then the customer refused to pay. A friend suggested that the easy way to avoid the dispute is to insure any shipments where we have a significant risk.

If you would like an immediate line of credit (30 days to pay) and have the goods ship immediately (no credit check delays) and are purchasing over $500 then we will add shipping insurance to your order.

The shipping insurance can be waived if the order is between $500 and $2,000 and you provide us with a formal confirmation that you accept responsibility of the goods once they ship.

Alternatively you can prepay by direct deposit or credit card.

What is not covered?

If there is a clear proof of delivery to the shipping address provided then we class that as delivered. Unfortunately there are cases where it is lost somewhere between the loading dock or receptionist and ending up in your hands. But we also know that a photo of the bag against a generic grey background is not proof of delivery, it is just proof of existence! It needs to be a reasonable proof of delivery.

It also doesn’t cover the expectation of overnight delivery. For example, if we were to ship to Melbourne (we are in Sydney) then we would expect it to be delivered within about 3 days. Most of the time it is overnight, but there are enough floods and other issues that regularly cause minor delays. Sending a second order the next day tends to not fix the problem. If it is super urgent, talk to us about how we can minimise the risk.

For damage claims we ask that you contact us immediately and we will probably ask for photos or some proof. The shipping insurance doesn’t cover claims weeks later. We do have warranty covering our items, but it excludes physical damage (e.g. being dropped). If the goods are damaged in transit then please let us know ASAP so we can cover it under the shipping insurance.