- General purpose thermostat with NTC temperature sensor
- Temperature range 5 C to 30 C approx.
- Output relay with LED indicator
- Relay power rating 24Vdc/ac 3A
- Power supply 12Vdc 100mA
Frequently Asked Questions
Q- what is the max working load of this device watts and voltage
- ANDY
Answer- download the manual here; http://www.velleman.be/Downloads/0/Manual_MK138.pdf
Q- Could I swap the sensor for a Humidity sensor
- Paul
Answer- No sorry this product does not support that.
Q- would this switch be suitable for a 12v computer fan be used as an extractor fan in a small loft space, I have a bear wire power supply with a variable voltage,3/6/9/12 for permanent supply.
thanks.
- martin
Answer- We can see no reason why not.
Q- can different temperature ranges be achieved by changing the sensor (i need to maintain 99 degree F).
- mike m
Answer- No sorry.
Q- Diamentions of the Thermostat kit
contacts close on rise or close on fall or both
cut in cut out diferential in Deg C
-
Answer- 54 x 62 x 28mm and the relay has a changeover set of contacts.
Q- This is simply a velleman Mk138 kit velleman also supply this as an Mk137 ready assembled module. Can you supply that instead?
- mike m
Answer- No sorry.
Q- hi,
Can you please tell me what power supply / transformer I can use with this ? Or does it come with one already ?
- Jason
Answer- This takes a 12v dc 100ma source with bare end inputs we do not sell a supply with bare ends.
a powersupply is not included.
Q- i wish to use this thermostat to control a 12v pump when it senses a tempreture of approx 25 deg C. is the thermostat able to switch the relay at a certain degree C ?
- david simpson
Answer- yes the thermostat can be set at a specific temperature
Q- I wish to measure up to 40deg c. Is this kit able to accomodate this temp with accuracy
- c bennett
Answer- Range is approx 5-30 deg C.
Q- Is it possible to have the temperature sensor remote from the thermostat?
- peter
Answer- Yes the product does support that.
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