1
7. Signature paper
6. Push button
5. LED Flash
PRODUCT STRUCTURE
Transmitter
FAULT ANALYSIS AND SOLUTION
Problem Possible Cause Solution
Transmitter
light does not
shine
Battery voltage is not sufficient
The installation of batteries is not
correct
Replace with a new button battery
Remove the CR2032 cell battery
and reinstall to ensure good
contact
2
① ②
③ ④
BATTERY INSTALLATION
Battery cover separation
Tittle up the base, pushe the battery
cover down at the same time.
Open the waterproof cover
Remove the waterproof cover
3
⑤ ⑥
Install the battery and waterproof cover Lock the waterproof cover
BATTERY INSTALLATION
Install the
battery correctly
Remove the
battery correctly
Install the
battery incorrectly
Short circuit
CR2032
Battery Compartment
Positive pole
Negative pole
A
A 1:2
9.Battery cover
8.Waterproof
cover
C
R
2
0
3
2
Double sided
adhesive tape
INSTALLATION AND DISASSEMBLY
Method 1: Double-sided tape installation
1. Stick the double-sided
adhesive tape on the back
of the transmitter battery cover.
2.Stick the transmitter
battery cover on the wall.
3.Snap the transmitter
into the battery cover,
slide down into position.
Method 2: Screw installation
1. Fix the battery cover
to the wall with screws.
2. Snap the transmitter into
the battery cover,slide down
into position.
Disassembly diagram of
the transmitter
Battery
cover
① ②
8
PRODUCT SPECIFICATIONS
Model: 90111USA
Frequency: 433.92MHz
Working temperature: -10℃~55℃
Indicator color: blue
Working voltage: 1x3V CR2032
Standby power consumption:﹤5μA
Transmit power:﹤5dBm
9 10
Model: 90111USA
Transmitter
11
PRECAUTIONS
Pre-installation notes:
1. The wireless signal is easily affected by metals, walls, concrete, etc. (such as
mobile phones under the shielding effect of elevators, etc.), and the signal is
weakened.
2. Open the package, consider using double-sided tape or screws to install the
transmitter.
3. The transmitter should not be installed on the metal door frame, otherwise it will
affect the distance.
4. The receiver should be kept as far away as possible from the induction cooker, TV
and other places with magnetic fields or signal interference sources.
5. The closer the transmitter and receiver are, the better the signal.
Warn:
1. This product contains a button battery, if swallowed, which can cause severe
internal burns within 2 hours and possibly death.
2. Keep new and used batteries away from children.
3. If the battery compartment cannot be closed tightly, please stop using this product
and keep it away from children.
4. If you think the battery may have been swallowed or entered any part of your body,
seek medical attention immediately.
7
FCC ID:RHT111
PRECAUTIONS
Coin-cell Battery Type: CR2032 Nominal Voltage: 3.0Vdc
INGESTION HAZARD: This product contains a button cell or coin battery.
DEATH or serious injury can occur if ingested.
A swallowed button cell or coin battery can cause Internal Chemical
Burns in as little as 2 hours.
KEEP new and used batteries OUT OF REACH of CHILDREN
Seek immediate medical attention if a battery is suspected to be
swallowed or inserted inside any part of the body.
WARNING
FCC Statement
This equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection
against harmful interference in a residential installation. This equipment generates, uses and can
radiate radio frequency energy and, if not installed and used in accordance with the instructions,
may cause harmful interference to radio communications. However, there is no guarantee that
interference will not occur in a particular installation. If this equipment does cause harmful
interference to radio or television reception, which can be determined by turning the equipment
off and on, the user is encouraged to try to correct the interference by one or more of the following
measures:
•Reorient or relocate the receiving antenna.
•Increase the separation between the equipment and receiver.
•Connect the equipment into an outlet on a circuit different from that to which the receiver
is connected.
•Consult the dealer or an experienced radio/TV technician for help.
Caution: Any changes or modifications to this device not explicitly approved by manufacturer could
void your authority to operate this equipment.
This device complies with part 15 of the FCC Rules. Operation is subject to the following two
conditions: (1) This device may not cause harmful interference, and (2) this device must accept
any interference received, including interference that may cause undesired operation.
RF Exposure Information
The device has been evaluated to meet general RF exposure requirement.
The device can be used in portable exposure condition, compliance with exposure requirements.
This equipment should be installed and operated with minimum distance 0 mm between
the radiator & your body.
PRECAUTIONS
