MerryIoT Open/Close Sensor

The MerryIOT Open/Close sensors give you a peace of mind, anywhere, anytime.
Get real time alerts at the exact moment you have unexpected guests, broken windows, opened safes, an opened mail box or escaped pets.Even a tamper attempt!
The sensors are removable, movable and easily placed at most doors or windows.
SKU: SKU-SEN-M-0003 Categories: , , Tags: ,


Radio / Wireless

Frequency: EU 868 MHz; US 902~928 MHz

Antenna Gain: -2dBi Peak

RF Sensitivity: -135dBm

Protocol: LoRaWAN1.0.3

Power Supply

Battery Type: 3.6V ½AA Li-SOCl2 x 2pcs, 2400mAh

Expected Battery Lifetime: Up to 5 years (Note: Service life varies to the operating conditions.)

Average Current: 135mA max / 100uA min

Operating Conditions

Temperature: 0 to 50°C Indoor use (IP40 equivalent)


Hall-Effect Sensor

• Detection range: 1 cm

Temperature Sensor

• Measurement range: -40°C –125°C

• Accuracy: ±(1°C)

Humidity Sensor

• Measurement range: 0 %RH – 100 %RH

• Accuracy: ±5 %

Three-Axis Linear Accelerometer

•3 sensitivity levels: High/Mid/Low

Mechanical Specifications

Dimensions: 90 mm x 25 mm x 40 mm;(Magnet) 40mm x 15 mm x 10 mm

Weight: 100 g

Regulatory Certification

Type Approval: CE/FCC/IC


If you have a company in the European Community (except Spain) and validated in VIES. You can buy without VAT taxes.

When you are reading the address and shipping and shipping fields of the order, just below the “Company Name“, you will see the rectangle to put your VAT number without the code of your country.

If you have any questions, you can find more info in our FAQ

Data for bank transfer

Note: Please, once you make the wire transfer, send the proof of payment to the email
If 24 hours have passed without proof of payment, the order will be canceled and the units will be put on sale.

To make a bank transfer, you will need the following information:

Company data:

Mahtec Miner S.L.
Alejandro Dumas, 17
29004 – Malaga
CIF: B16832529

Bank data:

Bank: Wise Bank

IBAN: BE61 9672 3553 0817


Account number: 2355308